Add searchable input controls and display profile editing

docs/shortcuts.md

@@ -1,11 +1,17 @@
 # Shortcuts and gestures
 
 `Super` is usually the Windows key. These are the built-in defaults. Open
-**Settings → Keyboard & mouse → Shortcuts** to change bindings and gestures or disable the login
+**Settings → Shortcuts** to change bindings and gestures or disable the login
 guide. Your saved bindings can override these defaults.
 The [example config](../packaging/config.kdl) adds the app, media and arrow-key
 shortcuts listed below.
 
+## Edit bindings in Settings
+
+Choose **Add shortcut**, record the combination, then search for an action. Recording temporarily inhibits Ferese shortcuts after the compositor confirms the inhibition; Escape, focus loss, leaving the page or the 15-second timeout releases it. A key menu with modifier buttons is also available for combinations reserved by a host desktop. Mouse buttons, wheel directions and three-, four- or five-finger swipes use the same editor.
+
+The editor provides action-specific arguments and an application command field. Commands are parsed into an argument vector; no shell is invoked. Adding an existing custom combination updates that binding; editing another binding into a duplicate reports a conflict. Changes apply globally. A physical-key binding retains its matching mode when only its action changes; recording or choosing a new key switches to key-label matching.
+
 ## Launcher
 
 **Super + Space** opens the launcher. Type to search, press **Tab** to accept