diff --git a/Sources/AppDelegate+DockShortcutRouting.swift b/Sources/AppDelegate+DockShortcutRouting.swift
index ed78becb6d62..a783ed96e2c0 100644
--- a/Sources/AppDelegate+DockShortcutRouting.swift
+++ b/Sources/AppDelegate+DockShortcutRouting.swift
@@ -160,6 +160,23 @@ extension AppDelegate {
         )
     }
 
+    /// Focuses the TextBox composer from a menu or command entrypoint. The
+    /// terminal panel owns the same focus toggle as the keyboard shortcut:
+    /// the first invocation reveals/focuses TextBox and the next returns focus
+    /// to the terminal.
+    @discardableResult
+    func performFocusTextBoxInputShortcut(preferredWindow: NSWindow? = nil) -> Bool {
+        let targetWindow = preferredWindow ?? shortcutRoutingActiveWindow
+        if let dock = focusedDockStoreForShortcut(
+            action: .focusTextBoxInput,
+            preferredWindow: targetWindow
+        ) {
+            return dock.performShortcutCommand(.focusTextBoxInput)
+        }
+        return activeTabManagerForCommands(preferredWindow: targetWindow)?
+            .focusFocusedTerminalTextBoxInputOrTerminal() ?? false
+    }
+
     /// Creates a New Terminal / New Browser surface in the focused Dock pane.
     /// Returns the created Dock panel id when handled, or `nil` to fall through to
     /// the main-area creation path.
diff --git a/Sources/cmuxApp.swift b/Sources/cmuxApp.swift
index 095236a0f313..78f99ffac09a 100644
--- a/Sources/cmuxApp.swift
+++ b/Sources/cmuxApp.swift
@@ -1075,6 +1075,15 @@ struct cmuxApp: App {
                 }
             }
 
+            splitCommandButton(
+                title: String(localized: "shortcut.focusTextBoxInput.label", defaultValue: "Focus TextBox Input"),
+                shortcut: menuShortcut(for: .focusTextBoxInput)
+            ) {
+                _ = AppDelegate.shared?.performFocusTextBoxInputShortcut(
+                    preferredWindow: NSApp.keyWindow ?? NSApp.mainWindow
+                )
+            }
+
             splitCommandButton(title: String(localized: "menu.view.toggleRightSidebar", defaultValue: "Toggle Right Sidebar"), shortcut: menuShortcut(for: .toggleRightSidebar)) {
                 if AppDelegate.shared?.toggleRightSidebarInActiveMainWindow(
                     preferredWindow: NSApp.keyWindow ?? NSApp.mainWindow