WIP: save unverified diagram Delete candidate at user pause

crates/oa-desktop/src/model_menu.rs

@@ -415,7 +415,9 @@ pub fn popup(app: &App) -> Option<Menu<Message>> {
                     true,
                 ));
                 entries.push(item("Placement properties", Message::Select(node.id), true));
-                entries.push(item("Hide from this diagram", Message::HideSelected, true));
+                entries.push(
+                    item("Hide from this diagram", Message::HideSelected, true).shortcut("Delete"),
+                );
             } else if e.kind() != Kind::Port
                 && let Some(d) = app.active_diagram.and_then(|d| p.diagrams.get(&d))
             {
@@ -465,7 +467,25 @@ pub fn popup(app: &App) -> Option<Menu<Message>> {
             true,
         ));
         if id != p.id {
-            entries.push(item("Delete from model…", Message::Delete, true));
+            entries.push(
+                item("Delete from model…", Message::Delete, true).shortcut(
+                    if request.canvas.is_some_and(|context| context.diagram != id)
+                        && (request.placement.is_some()
+                            || p.relations.contains_key(&id)
+                            || p.elements
+                                .get(&id)
+                                .is_some_and(|element| element.kind() == Kind::Port))
+                    {
+                        if request.placement.is_some() {
+                            "Shift+Delete"
+                        } else {
+                            "Delete / Shift+Delete"
+                        }
+                    } else {
+                        ""
+                    },
+                ),
+            );
         }
     }
     Some(Menu {