diff --git a/crates/ui-egui/src/dialogs/tests_screen_assets.rs b/crates/ui-egui/src/dialogs/tests_screen_assets.rs
index 9274b5224..60d47b39a 100644
--- a/crates/ui-egui/src/dialogs/tests_screen_assets.rs
+++ b/crates/ui-egui/src/dialogs/tests_screen_assets.rs
@@ -136,7 +136,7 @@ fn the_menus_reach_asset_export() {
     assert_eq!(find("assets.add", "As Single Asset"), Some(vec!["Object".to_string(), "Collect for Export".to_string()]));
     assert_eq!(find("assets.add", "As Multiple Assets"), Some(vec!["Object".to_string(), "Collect for Export".to_string()]));
     let window = entries.iter().find(|e| e.label == "Asset Export").unwrap();
-    assert_eq!(window.params, json!({"panel": crate::panels::asset_export::ID}));
+    assert_eq!(window.params, json!({"panel": crate::panels::asset_export::ID, "toggle": true}));
     app.run("window.panel", window.params.clone()).unwrap();
     assert_eq!(app.ui.open_panel.as_deref(), Some(crate::panels::asset_export::ID));
     app.run("assets.add", json!({"multiple": false})).unwrap();
diff --git a/crates/ui-egui/src/menus.rs b/crates/ui-egui/src/menus.rs
index ae1a6668c..2ba3ea82f 100644
--- a/crates/ui-egui/src/menus.rs
+++ b/crates/ui-egui/src/menus.rs
@@ -325,7 +325,12 @@ pub const UI_COMMANDS: &[(&str, &str, &str, &str)] = &[
         "Shift+Tab",
         "{} show/hide the dock and the floating panels (hiding them closes a panel popped out of the icon column), leaving the toolbar and the Control bar as they are; returns whether the panels show",
     ),
-    ("window.panel", "Show Panel", "", "{panel: id} e.g. layers, swatches, stroke (case-insensitive; display labels like \"Layers\" work too)"),
+    (
+        "window.panel",
+        "Show Panel",
+        "",
+        "{panel: id, toggle?: bool} e.g. layers, swatches, stroke (case-insensitive; display labels like \"Layers\" work too); toggle (the Window menu) hides a panel that shows, and shows it again where it was",
+    ),
     (
         "window.panel.layout",
         "Change Panel Layout",
@@ -979,6 +984,16 @@ pub fn check_params(session: &vectorcraft_engine::Session, id: &str, params: &Va
 }
 
 pub fn run_ui_command(app: &mut VectorcraftApp, id: &str, p: &Value) -> Option<Result<Value, String>> {
+    // The Window menu's panel items toggle like its other checked items (#2361); the panel's
+    // other ways in (shortcuts, Show Properties Panel, a tool's double-click) only show it.
+    if id == "window.panel" && p.get("toggle").and_then(Value::as_bool) == Some(true) && checked(app, id, p) == Some(true) {
+        let panel = p.get("panel").and_then(Value::as_str).and_then(normalize_panel).unwrap_or_default();
+        if app.ui.open_panel.as_deref() == Some(panel) {
+            app.ui.open_panel = None;
+            return Some(Ok(json!({"open": null})));
+        }
+        return Some(app.run("window.panel.close", json!({"panel": panel})));
+    }
     if let Some(result) = crate::panel_docking::command(app, id, p) {
         return Some(result);
     }
@@ -2157,7 +2172,7 @@ pub fn menu_tree() -> Vec<(&'static str, Vec<Item>)> {
 }
 
 pub fn menu_tree_named(english_names: bool) -> Vec<(&'static str, Vec<Item>)> {
-    let panel = |label: &'static str, id: &'static str| cp(label, "window.panel", json!({ "panel": id }));
+    let panel = |label: &'static str, id: &'static str| cp(label, "window.panel", json!({ "panel": id, "toggle": true }));
     vec![
         (
             // The application menu: About and Discord only. The in-window bar never shows it (File
diff --git a/crates/ui-egui/src/panel_docking_tests.rs b/crates/ui-egui/src/panel_docking_tests.rs
index 911f5d3dd..c66623e75 100644
--- a/crates/ui-egui/src/panel_docking_tests.rs
+++ b/crates/ui-egui/src/panel_docking_tests.rs
@@ -574,3 +574,43 @@ fn native_set_drop_targets_respect_the_visible_layer_above_an_ordinary_float() {
         "visible native group owns the drop: {target:?}"
     );
 }
+
+/// Window › Properties hides the panel while it shows, and the next click shows it again where it
+/// was (#2361): in the dock as the app starts, floating, and once the layout has been changed.
+/// The panel's other ways in (a tool's double-click, Show Properties Panel) only show it.
+#[test]
+fn the_window_menu_item_hides_a_shown_panel_and_shows_it_again() {
+    let item = crate::menus::menu_entries(&app())
+        .into_iter()
+        .find(|e| e.path == ["Window"] && e.command.as_deref() == Some("window.panel") && e.params["panel"] == "properties")
+        .expect("Window › Properties");
+    let params = item.params;
+    let shown = |app: &VectorcraftApp| crate::menus::checked(app, "window.panel", &params) == Some(true);
+    let in_layout = |app: &VectorcraftApp| app.ui.docking.as_ref().is_some_and(|layout| layout.contains(&"properties".into()));
+
+    let mut app = app();
+    assert!(app.ui.docking.is_none() && shown(&app), "the default dock shows Properties");
+    let start = legacy(&app);
+    app.run("window.panel", params.clone()).unwrap();
+    assert!(!shown(&app) && !in_layout(&app), "the first click hides it");
+    app.run("window.panel", params.clone()).unwrap();
+    assert!(shown(&app));
+    assert_eq!(app.ui.docking.as_ref(), Some(&start), "the second shows it where it was");
+
+    app.run("window.panel.move", json!({"panel":"properties", "anchor":"layers", "zone":"top"})).unwrap();
+    let moved = app.ui.docking.clone();
+    app.run("window.panel", params.clone()).unwrap();
+    assert!(!shown(&app) && !in_layout(&app));
+    app.run("window.panel", params.clone()).unwrap();
+    assert!(shown(&app) && app.ui.docking == moved);
+
+    app.run("window.panel.float", json!({"panel":"properties", "x":50, "y":70, "width":330, "height":410})).unwrap();
+    let floating = app.ui.docking.clone();
+    app.run("window.panel", params.clone()).unwrap();
+    assert!(!shown(&app) && !in_layout(&app), "a floating Properties hides too");
+    app.run("window.panel", params.clone()).unwrap();
+    assert!(shown(&app) && app.ui.docking == floating);
+
+    app.run("window.panel", json!({"panel":"properties"})).unwrap();
+    assert!(shown(&app), "without the menu's toggle the command only shows the panel");
+}