diff --git a/crates/ui-egui/src/i18n/ui.rs b/crates/ui-egui/src/i18n/ui.rs
index c0385aa4..d1e81f1e 100644
--- a/crates/ui-egui/src/i18n/ui.rs
+++ b/crates/ui-egui/src/i18n/ui.rs
@@ -998,6 +998,37 @@ const SIMPLIFIED_CHINESE: &[(&str, &str)] = &[
     ("Use In-Window Menu Bar on macOS", "在 macOS 上使用窗口内菜单栏"),
     ("Wireframe", "线框"),
     ("sRGB IEC61966-2.1 (default)", "sRGB IEC61966-2.1（默认）"),
+    // The Home screen (#574).
+    ("New Project", "新建项目"),
+    ("Open Project…", "打开项目…"),
+    ("Templates", "模板"),
+    ("EffectCraft home page", "EffectCraft 主页"),
+    ("EffectCraft on GitHub", "GitHub 上的 EffectCraft"),
+    ("Motion graphics and visual effects · version {}", "动态图形和视觉效果 · 版本 {}"),
+    ("New Composition", "新建合成"),
+    ("Open Demo Project", "打开示例项目"),
+    ("Import Footage…", "导入素材…"),
+    ("Filter recent files", "筛选最近文件"),
+    ("NAME", "名称"),
+    ("OPENED", "打开时间"),
+    ("SIZE", "大小"),
+    ("KIND", "类型"),
+    ("Your recent files will show here", "你最近使用的文件会显示在这里"),
+    ("Create a new project, or open the demo project to look around.", "新建一个项目，或打开示例项目先熟悉一下界面。"),
+    ("No recent files match the filter", "没有与筛选条件匹配的最近文件"),
+    ("Try another name or folder.", "请尝试其他名称或文件夹。"),
+    ("Just now", "刚刚"),
+    ("Yesterday", "昨天"),
+    ("{} minute ago", "{} 分钟前"),
+    ("{} minutes ago", "{} 分钟前"),
+    ("{} hour ago", "{} 小时前"),
+    ("{} hours ago", "{} 小时前"),
+    ("{} day ago", "{} 天前"),
+    ("{} days ago", "{} 天前"),
+    ("EffectCraft project", "EffectCraft 项目"),
+    ("After Effects project", "After Effects 项目"),
+    ("Lottie animation", "Lottie 动画"),
+    ("Project", "项目"),
 ];
 
 const TRADITIONAL_CHINESE: &[(&str, &str)] = &[
@@ -1472,7 +1503,7 @@ const TRADITIONAL_CHINESE: &[(&str, &str)] = &[
     ("Import PDF / Illustrator File", "Import PDF / Illustrator File"),
     ("Import Photoshop File", "Import Photoshop File"),
     ("Interpret Unlabeled Alpha As", "Interpret Unlabeled Alpha As"),
-    ("Join the ArtCraft Discord", "Join the ArtCraft Discord"),
+    ("Join the ArtCraft Discord", "加入 ArtCraft Discord"),
     ("Mercury GPU Acceleration ({})", "Mercury GPU Acceleration ({})"),
     ("Mercury Software Only", "Mercury Software Only"),
     ("OCIO (built-in ACES config)", "OCIO (built-in ACES config)"),
@@ -1485,6 +1516,37 @@ const TRADITIONAL_CHINESE: &[(&str, &str)] = &[
     ("Use In-Window Menu Bar on macOS", "Use In-Window Menu Bar on macOS"),
     ("Wireframe", "Wireframe"),
     ("sRGB IEC61966-2.1 (default)", "sRGB IEC61966-2.1 (default)"),
+    // The Home screen (#574).
+    ("New Project", "新增專案"),
+    ("Open Project…", "開啟專案…"),
+    ("Templates", "範本"),
+    ("EffectCraft home page", "EffectCraft 首頁"),
+    ("EffectCraft on GitHub", "GitHub 上的 EffectCraft"),
+    ("Motion graphics and visual effects · version {}", "動態圖形與視覺效果 · 版本 {}"),
+    ("New Composition", "新增合成"),
+    ("Open Demo Project", "開啟範例專案"),
+    ("Import Footage…", "匯入素材…"),
+    ("Filter recent files", "篩選最近的檔案"),
+    ("NAME", "名稱"),
+    ("OPENED", "開啟時間"),
+    ("SIZE", "大小"),
+    ("KIND", "類型"),
+    ("Your recent files will show here", "你最近使用的檔案會顯示在這裡"),
+    ("Create a new project, or open the demo project to look around.", "新增一個專案，或開啟範例專案先熟悉一下介面。"),
+    ("No recent files match the filter", "沒有符合篩選條件的最近檔案"),
+    ("Try another name or folder.", "請嘗試其他名稱或資料夾。"),
+    ("Just now", "剛剛"),
+    ("Yesterday", "昨天"),
+    ("{} minute ago", "{} 分鐘前"),
+    ("{} minutes ago", "{} 分鐘前"),
+    ("{} hour ago", "{} 小時前"),
+    ("{} hours ago", "{} 小時前"),
+    ("{} day ago", "{} 天前"),
+    ("{} days ago", "{} 天前"),
+    ("EffectCraft project", "EffectCraft 專案"),
+    ("After Effects project", "After Effects 專案"),
+    ("Lottie animation", "Lottie 動畫"),
+    ("Project", "專案"),
 ];
 
 /// Ukrainian (uk): original translations of the same interface rows as the Chinese catalogs.
diff --git a/crates/ui-egui/src/panels/essential.rs b/crates/ui-egui/src/panels/essential.rs
index ce6121a7..048b0b58 100644
--- a/crates/ui-egui/src/panels/essential.rs
+++ b/crates/ui-egui/src/panels/essential.rs
@@ -374,6 +374,37 @@ fn value_widget(app: &mut EffectcraftApp, ui: &mut egui::Ui, auto: &str, ty: Opt
             });
             r.response.rect
         }
+        // Scale keeps its Constrain Proportions link, on by default, as in After Effects (#338).
+        // The link is the property's own, shared with the Timeline's chain link.
+        ControlType::Point if p.match_id == "scale" && matches!(p.ui, ParamUi::Percent) => {
+            let comps = v.components();
+            let linked = !app.ui.timeline.unlinked.contains(&p.uid);
+            let (lr, link) = ui.allocate_exact_size(egui::vec2(14.0, 14.0), egui::Sense::click());
+            let t = app.tokens;
+            crate::icons::paint(ui.painter(), lr, crate::icons::Icon::Link, if linked { t.accent } else { t.text_faint });
+            let link = link.on_hover_text(tr("Constrain Proportions"));
+            app.auto.add(&format!("{auto}.link"), lr, "Constrain Proportions");
+            if link.clicked() && !app.ui.timeline.unlinked.remove(&p.uid) {
+                app.ui.timeline.unlinked.insert(p.uid);
+            }
+            let mut rect = lr;
+            for (d, &old) in comps.iter().enumerate() {
+                let mut x = old;
+                let r = ui.add(egui::DragValue::new(&mut x).speed(0.5).suffix(if d + 1 == comps.len() { "%" } else { "" }).max_decimals(1));
+                app.auto.add(&format!("{auto}.{d}"), r.rect, &p.name);
+                rect = rect.union(r.rect);
+                if r.changed() {
+                    // Alt edits one value of a linked pair, as in the Timeline.
+                    let next = if linked && !ui.input(|i| i.modifiers.alt) {
+                        widgets::constrained(&comps, d, x)
+                    } else {
+                        comps.iter().enumerate().map(|(e, &c)| if e == d { x } else { c }).collect()
+                    };
+                    out = Some(json!(next));
+                }
+            }
+            rect
+        }
         ControlType::Point => {
             let mut a = v.as_vec2();
             let r1 = ui.add(crate::widgets::drag_value(egui::DragValue::new(&mut a[0]).speed(1.0).max_decimals(1)));
diff --git a/crates/ui-egui/src/panels/graph.rs b/crates/ui-egui/src/panels/graph.rs
index 7f19d91b..2dbb9826 100644
--- a/crates/ui-egui/src/panels/graph.rs
+++ b/crates/ui-egui/src/panels/graph.rs
@@ -14,8 +14,8 @@ use egui::{Align2, Color32, Pos2, Rect, Sense, Stroke, StrokeKind, pos2, vec2};
 use serde_json::json;
 
 use super::timeline::TMap;
-use crate::EffectcraftApp;
 use crate::theme::Tokens;
+use crate::{EffectcraftApp, widgets};
 
 type Actions = Vec<(String, serde_json::Value)>;
 
@@ -162,10 +162,88 @@ fn curves<'a>(app: &EffectcraftApp, comp: &'a Comp, ectx: &EvalCtx, tm: TMap, pl
     out
 }
 
-fn text_button(app: &mut EffectcraftApp, ui: &mut egui::Ui, p: &egui::Painter, x: &mut f32, y: f32, label: &str, on: bool, id: &str, tip: &str) -> bool {
+/// The Graph Editor's button bar, laid out left to right. Buttons that would run past the right
+/// edge (a Timeline narrower than the whole row, #457) go to the "»" menu at its end instead of
+/// being clipped, so every one stays reachable.
+struct ButtonBar {
+    x: f32,
+    /// Where the next button must end to stay on the bar (the "»" button's room is kept free).
+    limit: f32,
+    /// Buttons moved to the "»" menu: (automation id, label, on, tooltip).
+    hidden: Vec<(String, String, bool, String)>,
+    /// The id picked from the "»" menu last frame, run by its button this frame.
+    chosen: Option<String>,
+}
+
+/// The "»" menu's popup and the id it picked (read by the next frame's buttons).
+const MORE_POPUP: &str = "graph-more";
+
+impl ButtonBar {
+    const MORE_W: f32 = 24.0;
+
+    fn new(ctx: &egui::Context, bar: Rect) -> Self {
+        let chosen = ctx.data_mut(|d| d.remove_temp::<String>(egui::Id::new(MORE_POPUP).with("chosen")));
+        ButtonBar { x: bar.min.x + 8.0, limit: bar.max.x - 8.0 - Self::MORE_W - 4.0, hidden: Vec::new(), chosen }
+    }
+
+    /// The "»" button and its menu, when buttons did not fit.
+    fn more(&mut self, app: &mut EffectcraftApp, ui: &mut egui::Ui, p: &egui::Painter, bar: Rect) {
+        if self.hidden.is_empty() {
+            return;
+        }
+        let t = app.tokens;
+        let r = Rect::from_min_size(pos2(bar.max.x - 8.0 - Self::MORE_W, bar.center().y - 9.0), vec2(Self::MORE_W, 18.0));
+        let pid = egui::Id::new(MORE_POPUP);
+        let resp = ui.interact(r, pid.with("button"), Sense::click()).on_hover_text(crate::i18n::tr("More"));
+        p.rect_filled(r, 3.0, if resp.hovered() { t.hover } else { Color32::from_rgb(0x2c, 0x2c, 0x2c) });
+        p.text(r.center(), Align2::CENTER_CENTER, "»", Tokens::ui(12.0), t.text);
+        app.auto.add("timeline.graph.more", r, "More");
+        if resp.clicked() {
+            let open = widgets::popup_is_open(ui, pid);
+            ui.data_mut(|d| d.insert_temp(pid.with("open"), !open));
+        }
+        if !widgets::popup_is_open(ui, pid) {
+            return;
+        }
+        let rows = self.hidden.len();
+        let pos = r.left_top() - vec2(0.0, rows as f32 * 22.0 + 18.0);
+        let chosen = widgets::popup_list(ui, pid, pos, r, rows, 0, |ui| {
+            let mut chosen = None;
+            for (id, label, on, tip) in &self.hidden {
+                let item = ui.selectable_label(*on, label.as_str()).on_hover_text(tip.as_str());
+                app.auto.add(&format!("timeline.graph.more.{id}"), item.rect, tip);
+                if item.clicked() {
+                    chosen = Some(id.clone());
+                }
+            }
+            chosen
+        });
+        if let Some(id) = chosen {
+            ui.data_mut(|d| d.insert_temp(pid.with("chosen"), id));
+            ui.ctx().request_repaint();
+        }
+    }
+}
+
+fn text_button(
+    app: &mut EffectcraftApp,
+    ui: &mut egui::Ui,
+    p: &egui::Painter,
+    bar: &mut ButtonBar,
+    y: f32,
+    label: &str,
+    on: bool,
+    id: &str,
+    tip: &str,
+) -> bool {
     let t = app.tokens;
     let w = p.layout_no_wrap(label.to_string(), Tokens::ui(11.0), t.text).size().x + 14.0;
-    let r = Rect::from_min_size(pos2(*x, y - 9.0), vec2(w, 18.0));
+    // Once one button overflows, the rest follow it into the menu (they keep their order).
+    if !bar.hidden.is_empty() || bar.x + w > bar.limit {
+        bar.hidden.push((id.to_string(), label.to_string(), on, tip.to_string()));
+        return bar.chosen.as_deref() == Some(id);
+    }
+    let r = Rect::from_min_size(pos2(bar.x, y - 9.0), vec2(w, 18.0));
     let resp = ui.interact(r, egui::Id::new(("graph-btn", id)), Sense::click()).on_hover_text(tip);
     p.rect_filled(
         r,
@@ -180,7 +258,7 @@ fn text_button(app: &mut EffectcraftApp, ui: &mut egui::Ui, p: &egui::Painter, x
     );
     p.text(r.center(), Align2::CENTER_CENTER, label, Tokens::ui(11.0), if on { Color32::WHITE } else { t.text });
     app.auto.add(&format!("timeline.graph.{id}"), r, tip);
-    *x += w + 4.0;
+    bar.x += w + 4.0;
     resp.clicked()
 }
 
@@ -446,14 +524,14 @@ pub(crate) fn show(app: &mut EffectcraftApp, ui: &mut egui::Ui, p: &egui::Painte
     p.rect_filled(bar, 0.0, t.panel_bg);
     p.line_segment([bar.left_top(), bar.right_top()], Stroke::new(1.0, t.separator));
     let y = bar.center().y;
-    let mut x = bar.min.x + 8.0;
+    let mut buttons = ButtonBar::new(&ctx, bar);
     let tl = &app.ui.timeline;
     let (auto_type, show_sel, auto_on) = (tl.graph_mode == "auto", tl.graph_show_selected, tl.graph_auto_zoom);
     if text_button(
         app,
         ui,
         p,
-        &mut x,
+        &mut buttons,
         y,
         "Auto",
         auto_type,
@@ -463,45 +541,45 @@ pub(crate) fn show(app: &mut EffectcraftApp, ui: &mut egui::Ui, p: &egui::Painte
         app.ui.timeline.graph_mode = if auto_type { if speed { "speed" } else { "value" } } else { "auto" }.into();
     }
     // Choosing a graph type turns Auto-Select off, as in After Effects.
-    if text_button(app, ui, p, &mut x, y, "Value", !speed, "valueGraph", "Edit Value Graph") {
+    if text_button(app, ui, p, &mut buttons, y, "Value", !speed, "valueGraph", "Edit Value Graph") {
         app.ui.timeline.graph_mode = "value".into();
     }
-    if text_button(app, ui, p, &mut x, y, "Speed", speed, "speedGraph", "Edit Speed Graph") {
+    if text_button(app, ui, p, &mut buttons, y, "Speed", speed, "speedGraph", "Edit Speed Graph") {
         app.ui.timeline.graph_mode = "speed".into();
     }
-    x += 6.0;
-    if text_button(app, ui, p, &mut x, y, "Selected", show_sel, "showSelected", "Show Selected Properties (else all animated properties)") {
+    buttons.x += 6.0;
+    if text_button(app, ui, p, &mut buttons, y, "Selected", show_sel, "showSelected", "Show Selected Properties (else all animated properties)") {
         app.ui.timeline.graph_show_selected = !show_sel;
     }
-    if text_button(app, ui, p, &mut x, y, "Auto-zoom", auto_on, "autoZoom", "Auto-zoom graph height") {
+    if text_button(app, ui, p, &mut buttons, y, "Auto-zoom", auto_on, "autoZoom", "Auto-zoom graph height") {
         app.ui.timeline.graph_auto_zoom = !auto_on;
     }
-    if text_button(app, ui, p, &mut x, y, "Fit", false, "fit", "Fit all graphs to view") {
+    if text_button(app, ui, p, &mut buttons, y, "Fit", false, "fit", "Fit all graphs to view") {
         app.ui.timeline.graph_auto_zoom = true;
         app.ui.timeline.pps = None;
     }
-    if text_button(app, ui, p, &mut x, y, "Fit Selection", false, "fitSelection", "Fit selection to view") {
+    if text_button(app, ui, p, &mut buttons, y, "Fit Selection", false, "fitSelection", "Fit selection to view") {
         fit_selection(app, &cs, tm, plot);
     }
-    x += 6.0;
+    buttons.x += 6.0;
     let (snap, reference, tbox) = (app.ui.timeline.graph_snap, app.ui.timeline.graph_reference, app.ui.timeline.graph_transform_box);
-    if text_button(app, ui, p, &mut x, y, "Snap", snap, "snap", "Snap (key drags snap to the current time and other keys)") {
+    if text_button(app, ui, p, &mut buttons, y, "Snap", snap, "snap", "Snap (key drags snap to the current time and other keys)") {
         app.ui.timeline.graph_snap = !snap;
     }
-    if text_button(app, ui, p, &mut x, y, "Reference", reference, "reference", "Show Reference Graph") {
+    if text_button(app, ui, p, &mut buttons, y, "Reference", reference, "reference", "Show Reference Graph") {
         app.ui.timeline.graph_reference = !reference;
     }
-    if text_button(app, ui, p, &mut x, y, "Transform Box", tbox, "transformBox", "Show Transform Box when multiple keys are selected") {
+    if text_button(app, ui, p, &mut buttons, y, "Transform Box", tbox, "transformBox", "Show Transform Box when multiple keys are selected") {
         app.ui.timeline.graph_transform_box = !tbox;
     }
-    x += 6.0;
+    buttons.x += 6.0;
     let pos_sel = app.session.state.selected_props.iter().find_map(|(l, u)| super::timeline::is_position(comp.layer(*l)?, *u).then_some(l.0));
-    if text_button(app, ui, p, &mut x, y, "Separate Dimensions", false, "separateDimensions", "Separate Dimensions (Position)")
+    if text_button(app, ui, p, &mut buttons, y, "Separate Dimensions", false, "separateDimensions", "Separate Dimensions (Position)")
         && let Some(l) = pos_sel.or(app.session.state.selected_layers.first().map(|l| l.0))
     {
         actions.push(("prop.separateDimensions".into(), json!({"layer": l})));
     }
-    x += 6.0;
+    buttons.x += 6.0;
     for (label, cmd, params, tip) in [
         ("Hold", "keys.interpolation", json!({"interpolation": "hold"}), "Convert selected keyframes to Hold"),
         ("Linear", "keys.interpolation", json!({"interpolation": "linear"}), "Convert selected keyframes to Linear"),
@@ -511,10 +589,11 @@ pub(crate) fn show(app: &mut EffectcraftApp, ui: &mut egui::Ui, p: &egui::Painte
         ("Ease Out", "keys.easyEaseOut", json!({}), "Easy Ease Out (Ctrl+Shift+F9)"),
     ] {
         let id = cmd.trim_start_matches("keys.").to_string() + label.split_whitespace().next().unwrap_or("");
-        if text_button(app, ui, p, &mut x, y, label, false, &id, tip) {
+        if text_button(app, ui, p, &mut buttons, y, label, false, &id, tip) {
             actions.push((cmd.into(), params));
         }
     }
+    buttons.more(app, ui, p, bar);
 }
 
 /// Zoom time and value to the selected keys (and their handles).
diff --git a/crates/ui-egui/src/panels/home.rs b/crates/ui-egui/src/panels/home.rs
index 861d7d49..46bbb44f 100644
--- a/crates/ui-egui/src/panels/home.rs
+++ b/crates/ui-egui/src/panels/home.rs
@@ -15,6 +15,7 @@ use egui::{Align2, Color32, Rect, Sense, Stroke, StrokeKind, pos2, vec2};
 use serde::Serialize;
 use serde_json::json;
 
+use crate::i18n::{tr, tr_args};
 use crate::icons::{self, Icon};
 use crate::theme::Tokens;
 use crate::{EffectcraftApp, widgets};
@@ -87,13 +88,13 @@ pub fn format_utc(secs: i64) -> String {
 /// date after a week).
 pub fn format_ago(now: i64, then: i64) -> String {
     let d = now.saturating_sub(then);
-    let plural = |n: i64, unit: &str| format!("{n} {unit}{} ago", if n == 1 { "" } else { "s" });
+    let plural = |n: i64, one: &str, many: &str| tr_args(if n == 1 { one } else { many }, &[&n]);
     match d {
-        i64::MIN..60 => "Just now".to_string(),
-        60..3_600 => plural(d / 60, "minute"),
-        3_600..86_400 => plural(d / 3_600, "hour"),
-        86_400..172_800 => "Yesterday".to_string(),
-        172_800..604_800 => plural(d / 86_400, "day"),
+        i64::MIN..60 => tr("Just now").to_string(),
+        60..3_600 => plural(d / 60, "{} minute ago", "{} minutes ago"),
+        3_600..86_400 => plural(d / 3_600, "{} hour ago", "{} hours ago"),
+        86_400..172_800 => tr("Yesterday").to_string(),
+        172_800..604_800 => plural(d / 86_400, "{} day ago", "{} days ago"),
         _ => format_utc(then).get(..10).unwrap_or_default().to_string(),
     }
 }
@@ -112,14 +113,14 @@ pub fn format_size(bytes: u64) -> String {
     }
 }
 
-/// The Kind column: what a recent file is, by its extension.
+/// The Kind column: what a recent file is, by its extension, in the interface language.
 fn kind_of(path: &str) -> &'static str {
-    match std::path::Path::new(path).extension().and_then(|e| e.to_str()).map(str::to_ascii_lowercase).as_deref() {
+    tr(match std::path::Path::new(path).extension().and_then(|e| e.to_str()).map(str::to_ascii_lowercase).as_deref() {
         Some("ecproj") => "EffectCraft project",
         Some("aep" | "aepx") => "After Effects project",
         Some("json" | "lottie") => "Lottie animation",
         _ => "Project",
-    }
+    })
 }
 
 /// The config-store name of a project's thumbnail.
@@ -237,7 +238,7 @@ fn rail_ui(app: &mut EffectcraftApp, ui: &mut egui::Ui, p: &egui::Painter, rail:
     let mut y = rail.min.y + 20.0;
     for (label, id, primary) in [("New Project", "file.newProject", true), ("Open Project…", "file.open", false)] {
         let r = Rect::from_min_size(pos2(x0, y), vec2(w, 34.0));
-        if widgets::text_button(ui, r, label, primary, &t, egui::Id::new(("home", id))).clicked() {
+        if widgets::text_button(ui, r, tr(label), primary, &t, egui::Id::new(("home", id))).clicked() {
             actions.push((id, json!({})));
         }
         app.auto.add(&format!("home.{id}"), r, label);
@@ -261,7 +262,7 @@ fn rail_ui(app: &mut EffectcraftApp, ui: &mut egui::Ui, p: &egui::Painter, rail:
         }
         let col = if on { t.tab_text_active } else { t.text_dim };
         icons::paint(p, Rect::from_center_size(pos2(r.min.x + 20.0, r.center().y), vec2(16.0, 16.0)), icon, col);
-        p.text(pos2(r.min.x + 40.0, r.center().y), Align2::LEFT_CENTER, label, Tokens::medium(13.0), col);
+        p.text(pos2(r.min.x + 40.0, r.center().y), Align2::LEFT_CENTER, tr(label), Tokens::medium(13.0), col);
         app.auto.add(&format!("home.tab.{}", label.to_ascii_lowercase()), r, label);
         if resp.clicked() {
             app.ui.home_learn = k == 2;
@@ -281,7 +282,7 @@ fn rail_ui(app: &mut EffectcraftApp, ui: &mut egui::Ui, p: &egui::Painter, rail:
     let foot_h = 22.0 + links.len() as f32 * 30.0 + 22.0 + sib_rows * 26.0;
     let mut cy = (rail.max.y - 16.0 - foot_h).max(y + 16.0);
     p.line_segment([pos2(x0, cy - 10.0), pos2(x0 + w, cy - 10.0)], Stroke::new(1.0, t.separator));
-    p.text(pos2(x0, cy + 6.0), Align2::LEFT_CENTER, crate::i18n::tr("Community"), Tokens::semibold(12.0), t.text_dim);
+    p.text(pos2(x0, cy + 6.0), Align2::LEFT_CENTER, tr("Community"), Tokens::semibold(12.0), t.text_dim);
     cy += 22.0;
     for (icon, label, cmd) in links {
         let r = Rect::from_min_size(pos2(x0, cy), vec2(w, 26.0));
@@ -294,14 +295,14 @@ fn rail_ui(app: &mut EffectcraftApp, ui: &mut egui::Ui, p: &egui::Painter, rail:
         }
         let col = if discord { Color32::WHITE } else { t.text };
         icons::paint(p, Rect::from_center_size(pos2(r.min.x + 16.0, r.center().y), vec2(13.0, 13.0)), icon, col);
-        p.text(pos2(r.min.x + 30.0, r.center().y), Align2::LEFT_CENTER, label, Tokens::medium(12.0), col);
+        p.text(pos2(r.min.x + 30.0, r.center().y), Align2::LEFT_CENTER, tr(label), Tokens::medium(12.0), col);
         app.auto.add(&format!("home.{cmd}"), r, label);
         if resp.clicked() {
             let _ = app.session.execute(cmd, json!({}));
         }
         cy += 30.0;
     }
-    p.text(pos2(x0, cy + 8.0), Align2::LEFT_CENTER, crate::i18n::tr("More ArtCraft apps"), Tokens::ui(11.0), t.text_faint);
+    p.text(pos2(x0, cy + 8.0), Align2::LEFT_CENTER, tr("More ArtCraft apps"), Tokens::ui(11.0), t.text_faint);
     cy += 20.0;
     let sw = (w - 6.0) / 2.0;
     for (i, (name, slug)) in sib.iter().enumerate() {
@@ -328,12 +329,12 @@ fn home_page(
     let t = app.tokens;
     let (x0, w) = (area.min.x, area.width());
     let mut y = area.min.y;
-    p.text(pos2(x0, y + 14.0), Align2::LEFT_CENTER, crate::i18n::tr("Welcome to EffectCraft"), Tokens::semibold(26.0), t.tab_text_active);
+    p.text(pos2(x0, y + 14.0), Align2::LEFT_CENTER, tr("Welcome to EffectCraft"), Tokens::semibold(26.0), t.tab_text_active);
     y += 40.0;
     p.text(
         pos2(x0, y + 8.0),
         Align2::LEFT_CENTER,
-        format!("Motion graphics and visual effects · version {}", env!("CARGO_PKG_VERSION")),
+        tr_args("Motion graphics and visual effects · version {}", &[&env!("CARGO_PKG_VERSION")]),
         Tokens::ui(12.5),
         t.text_dim,
     );
@@ -355,7 +356,7 @@ fn home_page(
         let ir = Rect::from_center_size(pos2(r.min.x + 30.0, r.center().y), vec2(32.0, 32.0));
         p.rect_filled(ir, 7.0, t.accent.gamma_multiply(0.18));
         icons::paint(p, ir.shrink(8.0), icon, t.accent);
-        p.with_clip_rect(r.shrink(2.0)).text(pos2(ir.max.x + 12.0, r.center().y), Align2::LEFT_CENTER, label, Tokens::medium(12.5), t.text);
+        p.with_clip_rect(r.shrink(2.0)).text(pos2(ir.max.x + 12.0, r.center().y), Align2::LEFT_CENTER, tr(label), Tokens::medium(12.5), t.text);
         app.auto.add(&format!("home.{id}"), r, label);
         if resp.clicked() {
             if id == "templates" {
@@ -369,18 +370,18 @@ fn home_page(
     y += 64.0 + 36.0;
 
     // Recent: heading, filter, clear.
-    p.text(pos2(x0, y + 12.0), Align2::LEFT_CENTER, crate::i18n::tr("Recent"), Tokens::semibold(17.0), t.tab_text_active);
+    p.text(pos2(x0, y + 12.0), Align2::LEFT_CENTER, tr("Recent"), Tokens::semibold(17.0), t.tab_text_active);
     let entries = recent_entries(&app.session.prefs);
     let fid = egui::Id::new("home-filter");
     let mut filter: String = ctx.data(|d| d.get_temp(fid)).unwrap_or_default();
     let fr = Rect::from_min_size(pos2(x0 + w - 240.0, y), vec2(240.0, 26.0));
-    widgets::search_field(ui, fr, &mut filter, "Filter recent files", &t);
+    widgets::search_field(ui, fr, &mut filter, tr("Filter recent files"), &t);
     app.auto.add("home.filter", fr, "Filter recent files");
     ctx.data_mut(|d| d.insert_temp(fid, filter.clone()));
     if !entries.is_empty() {
         let cr = Rect::from_min_size(pos2(fr.min.x - 96.0, y + 3.0), vec2(84.0, 20.0));
         let resp = ui.interact(cr, egui::Id::new("home-clear-recent"), Sense::click());
-        p.text(cr.right_center(), Align2::RIGHT_CENTER, crate::i18n::tr("Clear list"), Tokens::ui(11.5), if resp.hovered() { t.text } else { t.text_faint });
+        p.text(cr.right_center(), Align2::RIGHT_CENTER, tr("Clear list"), Tokens::ui(11.5), if resp.hovered() { t.text } else { t.text_faint });
         app.auto.add("home.clearRecent", cr, "Clear Recent Projects");
         if resp.clicked() {
             actions.push(("file.clearRecent", json!({})));
@@ -390,7 +391,7 @@ fn home_page(
     // Column headings (Name / Opened / Size / Kind, as in After Effects).
     let (opened_x, size_x, kind_x) = (x0 + w * 0.52, x0 + w * 0.68, x0 + w * 0.80);
     for (label, x) in [("NAME", x0 + 76.0), ("OPENED", opened_x), ("SIZE", size_x), ("KIND", kind_x)] {
-        p.text(pos2(x, y), Align2::LEFT_CENTER, label, Tokens::medium(10.5), t.text_faint);
+        p.text(pos2(x, y), Align2::LEFT_CENTER, tr(label), Tokens::medium(10.5), t.text_faint);
     }
     y += 12.0;
     p.line_segment([pos2(x0, y), pos2(x0 + w, y)], Stroke::new(1.0, t.separator));
@@ -406,8 +407,8 @@ fn home_page(
         } else {
             ("No recent files match the filter", "Try another name or folder.")
         };
-        p.text(c + vec2(0.0, 40.0), Align2::CENTER_CENTER, head, Tokens::semibold(14.0), t.text);
-        p.text(c + vec2(0.0, 62.0), Align2::CENTER_CENTER, sub, Tokens::ui(12.0), t.text_faint);
+        p.text(c + vec2(0.0, 40.0), Align2::CENTER_CENTER, tr(head), Tokens::semibold(14.0), t.text);
+        p.text(c + vec2(0.0, 62.0), Align2::CENTER_CENTER, tr(sub), Tokens::ui(12.0), t.text_faint);
     }
     let now = web_time::SystemTime::now().duration_since(web_time::UNIX_EPOCH).map_or(0, |d| i64::try_from(d.as_secs()).unwrap_or(i64::MAX));
     let row_h = 48.0;
@@ -439,7 +440,7 @@ fn home_page(
             Tokens::medium(13.0),
             if e.exists { t.tab_text_active } else { t.text_dim },
         );
-        let sub = if e.exists { e.folder.clone() } else { format!("{} (missing)", e.folder) };
+        let sub = if e.exists { e.folder.clone() } else { format!("{} {}", e.folder, crate::i18n::tr("(missing)")) };
         name_clip.text(pos2(tr.max.x + 6.0, r.center().y + 9.0), Align2::LEFT_CENTER, sub, Tokens::ui(11.0), t.text_faint);
         let cell = |x: f32, x1: f32, text: String| {
             p.with_clip_rect(Rect::from_min_max(pos2(x, r.min.y), pos2(x1 - 8.0, r.max.y))).text(
@@ -534,6 +535,21 @@ mod tests {
         assert_eq!((kind_of("/a/B.ecproj"), kind_of("c.AEP"), kind_of("x")), ("EffectCraft project", "After Effects project", "Project"));
     }
 
+    /// The Home screen's own text goes through the interface catalog (#574): the Opened and Kind
+    /// columns read in Chinese, and English stays English.
+    #[test]
+    fn home_text_follows_the_interface_language() {
+        let now = 1_790_000_000;
+        crate::i18n::set_current("zh-hans");
+        let zh = (format_ago(now, now - 5), format_ago(now, now - 3 * 3_600), format_ago(now, now - 90_000), kind_of("/a/B.ecproj"));
+        crate::i18n::set_current("zh-hant");
+        let tw = (format_ago(now, now - 60), kind_of("x"));
+        crate::i18n::set_current("en");
+        assert_eq!(zh, ("刚刚".into(), "3 小时前".into(), "昨天".into(), "EffectCraft 项目"));
+        assert_eq!(tw, ("1 分鐘前".into(), "專案"));
+        assert_eq!(tr("Filter recent files"), "Filter recent files");
+    }
+
     #[test]
     fn home_screen_registers_its_controls() {
         let mut s = effectcraft_engine::Session::default();
diff --git a/crates/ui-egui/src/panels/timeline.rs b/crates/ui-egui/src/panels/timeline.rs
index f91987c0..4104871f 100644
--- a/crates/ui-egui/src/panels/timeline.rs
+++ b/crates/ui-egui/src/panels/timeline.rs
@@ -1614,9 +1614,14 @@ pub fn show(app: &mut EffectcraftApp, ui: &mut egui::Ui, rect: Rect) {
     let max_scroll = (total_h - rows_rect.height() + rh).max(0.0);
     if ui.rect_contains_pointer(rows_rect) {
         let (dy, dx, zoom) = ui.input(|i| (i.smooth_scroll_delta.y, i.smooth_scroll_delta.x, i.modifiers.alt));
-        if zoom && dy.abs() > 0.0 {
+        // Ctrl/Cmd+wheel and a trackpad pinch reach egui as a zoom factor rather than a scroll
+        // (#428); like Alt+wheel they zoom time.
+        let pinch = ui.input(|i| i.zoom_delta()) as f64;
+        let at_x = ui.input(|i| i.pointer.hover_pos()).map(|p| p.x).unwrap_or(graph_x0);
+        if (pinch - 1.0).abs() > 1e-4 {
+            set_zoom(&mut app.ui.timeline, &comp, tm.pps * pinch, fit_pps, tm.t(at_x), (at_x - tm.x0) as f64);
+        } else if zoom && dy.abs() > 0.0 {
             // Alt+wheel zooms around the pointer, out until the whole comp shows.
-            let at_x = ui.input(|i| i.pointer.hover_pos()).map(|p| p.x).unwrap_or(graph_x0);
             set_zoom(&mut app.ui.timeline, &comp, tm.pps * (dy as f64 / 200.0).exp(), fit_pps, tm.t(at_x), (at_x - tm.x0) as f64);
         } else {
             let over_outline = ui.input(|i| i.pointer.hover_pos()).is_some_and(|p| p.x < graph_x0);
@@ -3445,26 +3450,6 @@ fn fmt_num(v: f64, d: usize) -> String {
     format!("{v:.d$}")
 }
 
-/// Linked values after component `d` of `c` became `v`: the others scale by the same ratio
-/// (Constrain Proportions); from 0 the others that are 0 too follow the value.
-fn constrained(c: &[f64], d: usize, v: f64) -> Vec<f64> {
-    let Some(&old) = c.get(d) else { return c.to_vec() };
-    c.iter()
-        .enumerate()
-        .map(|(e, &x)| {
-            if e == d {
-                v
-            } else if old.abs() > 1e-9 {
-                x * v / old
-            } else if x.abs() <= 1e-9 {
-                v
-            } else {
-                x
-            }
-        })
-        .collect()
-}
-
 /// Inline value editor for a property row; pushes `prop.set` actions. Returns the rects of a
 /// multi-dimension value's fields, one per dimension (none for other values).
 fn value_editor(
@@ -3540,7 +3525,7 @@ fn value_editor(
                     // Alt edits one value of a linked pair.
                     let shown = if linked && !ui.input(|i| i.modifiers.alt) { n.min(c.len()) } else { 1 };
                     let from = if shown == 1 { d } else { 0 };
-                    for (e, v) in constrained(c.get(from..from + shown).unwrap_or_default(), d - from, nv).into_iter().enumerate() {
+                    for (e, v) in widgets::constrained(c.get(from..from + shown).unwrap_or_default(), d - from, nv).into_iter().enumerate() {
                         if let Some(slot) = nc.get_mut(from + e) {
                             *slot = v;
                         }
diff --git a/crates/ui-egui/src/panels/viewer_tools.rs b/crates/ui-egui/src/panels/viewer_tools.rs
index c94f94f5..72cb0806 100644
--- a/crates/ui-egui/src/panels/viewer_tools.rs
+++ b/crates/ui-egui/src/panels/viewer_tools.rs
@@ -726,9 +726,23 @@ pub(crate) fn bottom_bar(app: &mut EffectcraftApp, ui: &mut egui::Ui, bar: Rect,
     x += 4.0;
     // 3D renderer + view.
     if comp.has_3d() {
+        // The comp's 3D renderer, as After Effects' Composition panel shows it: the menu switches
+        // it through Composition Settings (undoable), and the automation label is the renderer.
+        use effectcraft_engine::project::Renderer;
+        let renderers = [(Renderer::Classic3D, "Classic 3D", "classic3D"), (Renderer::Advanced3D, "Advanced 3D", "advanced3D")];
+        let current = renderers.iter().find(|(r, ..)| *r == comp.renderer).map_or("Classic 3D", |(_, label, _)| *label);
         let r = Rect::from_min_size(pos2(x, cy - 10.0), vec2(96.0, 20.0));
-        let _ = widgets::dropdown(ui, r, "Classic 3D", &t, egui::Id::new("vw-3d"));
-        app.auto.add("viewer.renderer3d", r, "3D Renderer");
+        if widgets::dropdown(ui, r, crate::i18n::tr(current), &t, egui::Id::new("vw-3d")).clicked() {
+            toggle_popup(ui, "vw-3d-pop");
+        }
+        app.auto.add("viewer.renderer3d", r, current);
+        let items: Vec<(String, bool)> = renderers.iter().map(|(r, label, _)| (label.to_string(), *r == comp.renderer)).collect();
+        if let Some((renderer, _, id)) = popup(app, ui, "vw-3d-pop", r, &items, "renderer3dItem").and_then(|i| renderers.get(i))
+            && *renderer != comp.renderer
+            && let Err(e) = app.session.execute("comp.settings", json!({"renderer": id}))
+        {
+            app.ui.status = e.to_string();
+        }
         x = r.max.x + 4.0;
         let cid = app.session.active_comp_id();
         let cur = cid.and_then(|c| app.session.state.views3d.get(&c)).map(|v| v.current).unwrap_or_default();
diff --git a/crates/ui-egui/src/widgets.rs b/crates/ui-egui/src/widgets.rs
index ea76f06b..364a2472 100644
--- a/crates/ui-egui/src/widgets.rs
+++ b/crates/ui-egui/src/widgets.rs
@@ -568,6 +568,26 @@ pub fn open_popup(ui: &Ui, id: egui::Id) {
     ui.data_mut(|d| d.insert_temp(id.with("open"), true));
 }
 
+/// Linked values after component `d` of `c` became `v`: the others scale by the same ratio
+/// (Constrain Proportions); from 0 the others that are 0 too follow the value.
+pub(crate) fn constrained(c: &[f64], d: usize, v: f64) -> Vec<f64> {
+    let Some(&old) = c.get(d) else { return c.to_vec() };
+    c.iter()
+        .enumerate()
+        .map(|(e, &x)| {
+            if e == d {
+                v
+            } else if old.abs() > 1e-9 {
+                x * v / old
+            } else if x.abs() <= 1e-9 {
+                v
+            } else {
+                x
+            }
+        })
+        .collect()
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
diff --git a/crates/ui-egui/tests/ui_3d.rs b/crates/ui-egui/tests/ui_3d.rs
index 385bf7ac..0c65084b 100644
--- a/crates/ui-egui/tests/ui_3d.rs
+++ b/crates/ui-egui/tests/ui_3d.rs
@@ -47,6 +47,37 @@ fn viewer_registers_3d_controls() {
     assert!(ids.iter().any(|i| i.starts_with("viewer.camera.")), "camera wireframe registered");
 }
 
+/// Click the centre of the automation element `id`.
+fn click_id(h: &mut Harness<'_, EffectcraftApp>, id: &str) {
+    let [x, y, w, hh] = h.state().auto.find(id).unwrap_or_else(|| panic!("{id} is registered")).rect;
+    let p = egui::pos2(x + w / 2.0, y + hh / 2.0);
+    h.input_mut().events.push(egui::Event::PointerMoved(p));
+    h.input_mut().events.push(egui::Event::PointerButton { pos: p, button: egui::PointerButton::Primary, pressed: true, modifiers: egui::Modifiers::NONE });
+    h.step();
+    h.input_mut().events.push(egui::Event::PointerButton { pos: p, button: egui::PointerButton::Primary, pressed: false, modifiers: egui::Modifiers::NONE });
+    h.run_steps(3);
+}
+
+/// #307: the viewer's 3D Renderer menu shows the comp's renderer (it always read "Classic 3D")
+/// and switches it, as After Effects' Composition panel does.
+#[test]
+fn renderer_menu_shows_and_switches_the_comp_renderer() {
+    let mut h = Harness::builder().with_size(egui::vec2(1600.0, 1000.0)).build_eframe(|_| app());
+    h.state_mut().session.execute("comp.settings", json!({"renderer": "classic3D"})).unwrap();
+    h.run_steps(3);
+    let label = |h: &Harness<'_, EffectcraftApp>| h.state().auto.find("viewer.renderer3d").map(|e| e.label.clone());
+    assert_eq!(label(&h).as_deref(), Some("Classic 3D"));
+    click_id(&mut h, "viewer.renderer3d");
+    click_id(&mut h, "viewer.renderer3dItem.1");
+    let renderer = h.state().session.active_comp().unwrap().renderer;
+    assert_eq!(renderer, effectcraft_engine::project::Renderer::Advanced3D);
+    h.run_steps(2);
+    assert_eq!(label(&h).as_deref(), Some("Advanced 3D"));
+    // One undoable Composition Settings step.
+    h.state_mut().session.execute("edit.undo", json!({})).unwrap();
+    assert_eq!(h.state().session.active_comp().unwrap().renderer, effectcraft_engine::project::Renderer::Classic3D);
+}
+
 #[test]
 fn camera_and_light_dialogs_create_layers() {
     let mut h = Harness::builder().with_size(egui::vec2(1600.0, 1000.0)).build_eframe(|_| app());
diff --git a/crates/ui-egui/tests/ui_keyframes.rs b/crates/ui-egui/tests/ui_keyframes.rs
index 50ccf1ef..3ca85f8f 100644
--- a/crates/ui-egui/tests/ui_keyframes.rs
+++ b/crates/ui-egui/tests/ui_keyframes.rs
@@ -293,3 +293,58 @@ fn a_graph_handle_drag_moves_the_handles_of_every_selected_key() {
     assert_eq!(h.state().session.history.undo.len(), undo + 1, "one undo step");
     assert!((handle(&h, 0).x - k0.x - px_per_s * 0.2).abs() < 2.0, "key 0's handle moved on screen");
 }
+
+/// #457: on a Timeline narrower than the Graph Editor's whole button row, the buttons that don't
+/// fit go to a "»" menu at the end of the bar instead of being cut off; each stays reachable and
+/// works from there.
+#[test]
+fn graph_editor_buttons_that_do_not_fit_move_to_the_more_menu() {
+    let (mut h, _, _) = harness();
+    h.set_size(egui::vec2(1280.0, 800.0));
+    h.state_mut().ui.timeline.graph_editor = true;
+    h.run_steps(4);
+    let ids = [
+        "autoSelectGraphType",
+        "valueGraph",
+        "speedGraph",
+        "showSelected",
+        "autoZoom",
+        "fit",
+        "fitSelection",
+        "snap",
+        "reference",
+        "transformBox",
+        "separateDimensions",
+        "interpolationHold",
+        "interpolationLinear",
+        "interpolationAuto",
+        "easyEaseEasy",
+        "easyEaseInEase",
+        "easyEaseOutEase",
+    ];
+    let graph = h.state().auto.find("timeline.graph").expect("the Graph Editor is shown").rect;
+    let right = graph[0] + graph[2];
+    let shown: Vec<&str> = ids.iter().copied().filter(|id| h.state().auto.find(&format!("timeline.graph.{id}")).is_some()).collect();
+    for id in &shown {
+        let r = h.state().auto.find(&format!("timeline.graph.{id}")).unwrap().rect;
+        assert!(r[0] + r[2] <= right, "{id} is drawn past the bar's right edge");
+    }
+    let more = h.state().auto.find("timeline.graph.more").expect("the buttons that don't fit are in a menu").rect;
+    assert!(more[0] + more[2] <= right);
+    let p = pos2(more[0] + more[2] / 2.0, more[1] + more[3] / 2.0);
+    let click = |h: &mut Harness<'_, EffectcraftApp>, p: Pos2| {
+        h.input_mut().events.push(Event::PointerMoved(p));
+        h.input_mut().events.push(Event::PointerButton { pos: p, button: egui::PointerButton::Primary, pressed: true, modifiers: Default::default() });
+        h.step();
+        h.input_mut().events.push(Event::PointerButton { pos: p, button: egui::PointerButton::Primary, pressed: false, modifiers: Default::default() });
+        h.run_steps(3);
+    };
+    click(&mut h, p);
+    let hidden: Vec<&str> = ids.iter().copied().filter(|id| h.state().auto.find(&format!("timeline.graph.more.{id}")).is_some()).collect();
+    assert_eq!(shown.len() + hidden.len(), ids.len(), "every button is on the bar or in the menu: {shown:?} + {hidden:?}");
+    assert!(hidden.contains(&"transformBox"), "{hidden:?}");
+    let before = h.state().ui.timeline.graph_transform_box;
+    let item = h.state().auto.find("timeline.graph.more.transformBox").unwrap().rect;
+    click(&mut h, pos2(item[0] + item[2] / 2.0, item[1] + item[3] / 2.0));
+    assert_eq!(h.state().ui.timeline.graph_transform_box, !before, "the menu item runs the button");
+}
diff --git a/crates/ui-egui/tests/ui_panels.rs b/crates/ui-egui/tests/ui_panels.rs
index ac84a550..7235b75d 100644
--- a/crates/ui-egui/tests/ui_panels.rs
+++ b/crates/ui-egui/tests/ui_panels.rs
@@ -318,3 +318,47 @@ fn panels_snapshot() {
         img.save(format!("{dir}/{panel}{scope}.png")).unwrap();
     }
 }
+
+/// Drag the automation element `id` horizontally by `dx` points.
+fn drag_x(h: &mut Harness<'_, EffectcraftApp>, id: &str, dx: f32) {
+    let e = h.state().auto.find(id).unwrap_or_else(|| panic!("no {id}")).clone();
+    let from: Pos2 = pos2(e.rect[0] + e.rect[2] / 2.0, e.rect[1] + e.rect[3] / 2.0);
+    h.input_mut().events.push(Event::PointerMoved(from));
+    h.step();
+    h.input_mut().events.push(Event::PointerButton { pos: from, button: egui::PointerButton::Primary, pressed: true, modifiers: Default::default() });
+    h.step();
+    for k in 1..=10 {
+        h.input_mut().events.push(Event::PointerMoved(from + egui::vec2(dx * k as f32 / 10.0, 0.0)));
+        h.step();
+    }
+    let to = from + egui::vec2(dx, 0.0);
+    h.input_mut().events.push(Event::PointerButton { pos: to, button: egui::PointerButton::Primary, pressed: false, modifiers: Default::default() });
+    h.run_steps(3);
+}
+
+/// #338: an Essential Graphics Scale control keeps After Effects' Constrain Proportions link, on
+/// by default: dragging X scales Y with it; unlinked, X moves alone.
+#[test]
+fn essential_graphics_scale_keeps_constrain_proportions() {
+    let mut h = harness();
+    let layer = h.state().session.active_comp().unwrap().layers[0].id.0;
+    h.state_mut().session.execute("prop.set", json!({"layer": layer, "path": "transform/scale", "value": [100.0, 50.0]})).unwrap();
+    let c =
+        h.state_mut().session.execute("essential.addProperty", json!({"layer": layer, "path": "transform/scale"})).unwrap()["controls"][0].as_u64().unwrap();
+    open(&mut h, "essentialGraphics");
+    let value = format!("essential.control.{c}.value");
+    let scale = |h: &Harness<'_, EffectcraftApp>| {
+        let comp = h.state().session.active_comp().unwrap();
+        let l = comp.layers.iter().find(|l| l.id.0 == layer).unwrap();
+        l.props.prop("transform/scale").unwrap().value.components()
+    };
+    assert!(h.state().auto.find(&format!("{value}.link")).is_some(), "the chain link is drawn");
+    drag_x(&mut h, &format!("{value}.0"), 40.0);
+    let linked = scale(&h);
+    assert!(linked[0] > 100.0, "{linked:?}");
+    assert!((linked[1] / linked[0] - 0.5).abs() < 1e-6, "Y follows X in proportion: {linked:?}");
+    click(&mut h, &format!("{value}.link"));
+    drag_x(&mut h, &format!("{value}.0"), 40.0);
+    let unlinked = scale(&h);
+    assert!(unlinked[0] > linked[0] && unlinked[1] == linked[1], "unlinked, X moves alone: {unlinked:?}");
+}
diff --git a/crates/ui-egui/tests/ui_timeline_zoom.rs b/crates/ui-egui/tests/ui_timeline_zoom.rs
index 48b19cb8..5fb16943 100644
--- a/crates/ui-egui/tests/ui_timeline_zoom.rs
+++ b/crates/ui-egui/tests/ui_timeline_zoom.rs
@@ -59,6 +59,34 @@ fn alt_wheel_zooms_out_until_the_whole_comp_shows() {
     assert!(h.state().ui.timeline.pps.is_some());
 }
 
+/// #428: Ctrl/Cmd+wheel and a trackpad pinch zoom time over the layers, as Alt+wheel does (egui
+/// hands them over as a zoom factor, which the Timeline ignored).
+#[test]
+fn ctrl_wheel_and_pinch_zoom_time() {
+    let (mut h, layer) = harness();
+    h.state_mut().ui.timeline.pps = Some(200.0);
+    h.run_steps(2);
+    let pps = |h: &Harness<'_, EffectcraftApp>| h.state().ui.timeline.pps.unwrap_or(0.0);
+    let start = pps(&h);
+    assert!(start > 0.0);
+    let at = over_bar(&h, layer);
+    h.event(Event::PointerMoved(at));
+    h.event(Event::Zoom(0.5));
+    h.step();
+    let pinched = pps(&h);
+    assert!(pinched > 0.0 && pinched < start * 0.75, "a pinch in zooms out: {start} -> {pinched}");
+    let at = over_bar(&h, layer);
+    h.event(Event::PointerMoved(at));
+    h.event(Event::ModifiersChanged(Modifiers::COMMAND));
+    h.event(Event::MouseWheel { unit: MouseWheelUnit::Point, delta: vec2(0.0, 240.0), modifiers: Modifiers::COMMAND, phase: egui::TouchPhase::Move });
+    h.step();
+    h.event(Event::ModifiersChanged(Modifiers::NONE));
+    h.step();
+    assert!(pps(&h) > pinched, "Ctrl/Cmd+wheel up zooms in: {pinched} -> {}", pps(&h));
+    // Over the layers, so the rows did not scroll.
+    assert_eq!(h.state().ui.timeline.scroll_y, 0.0);
+}
+
 fn rect(h: &Harness<'_, EffectcraftApp>, id: &str) -> egui::Rect {
     let e = h.state().auto.find(id).unwrap_or_else(|| panic!("no {id}")).clone();
     egui::Rect::from_min_size(pos2(e.rect[0], e.rect[1]), vec2(e.rect[2], e.rect[3]))