Replace `Meta` keyboard shortcut with explicit key (#3477)

getting_started/step_by_step/ui_game_user_interface.rst

@@ -408,7 +408,7 @@ Inherit the Bar Scene to build the LifeBar
 Go to ``Scene -> New Inherited Scene`` to create a new type of ``Bar``.
 Select the Bar scene and open it. You should see a new [unsaved] tab,
 that's like your ``Bar``, but with all nodes except the root in grey.
-Press :kbd:`Meta + S` to save the new inherited scene and name it
+Press :kbd:`Ctrl + S` (:kbd:`Cmd + S` on macOS) to save the new inherited scene and name it
 ``LifeBar``.
 
 .. figure:: img/ui_gui_step_tutorial_inherited_scene_parent.png
@@ -474,7 +474,7 @@ all the resources this node uses and create unique copies for us.
 .. tip::
 
     When you duplicate a node from the Scene tree, with
-    :kbd:`Meta + D`, it shares its resources with the original node. You
+    :kbd:`Ctrl + D` (:kbd:`Cmd + D` on macOS), it shares its resources with the original node. You
     need to use ``Make Sub-Resources Unique`` before you can tweak the
     resources without affecting the source node.
 

getting_started/step_by_step/ui_main_menu.rst

@@ -127,7 +127,7 @@ We have to add a root node before we can save the scene. Your UI's root
 should be the outermost container or element. In this case it's a
 ``MarginContainer``. ``MarginContainer`` is a good starting point for
 most interfaces, as you often need padding around the UI. Press
-:kbd:`Meta + S` to save the scene to the disk. Name it *MainMenu*.
+:kbd:`Ctrl + S` (:kbd:`Cmd + S` on macOS) to save the scene to the disk. Name it *MainMenu*.
 
 Select the ``MarginContainer`` again, and head to the inspector to
 define the margins' size. Scroll down the ``Control`` class, to the
@@ -152,9 +152,9 @@ Select the ``MarginContainer``, and create the UI elements as
 3. the version note,
 4. and the main menu's illustration.
 
-Click the **Add Node** button or press :kbd:`Meta + A` on your keyboard.
+Click the **Add Node** button or press :kbd:`Ctrl + A` (:kbd:`Cmd + A` on macOS) on your keyboard.
 Start to type ``TextureRect`` to find the corresponding node and press
-enter. With the new node selected, press :kbd:`Meta + D` five times to
+enter. With the new node selected, press :kbd:`Ctrl + D` (:kbd:`Cmd + D` on macOS) five times to
 create five extra ``TextureRect`` instances.
 
 Click each of the nodes to select it. In the inspector, find the **Texture**
@@ -234,7 +234,7 @@ automatically.
 
 To space out the menu options and the logo on the left, we'll use one
 final container and its size flags. Select the ``VBoxContainer`` and
-press :kbd:`Meta + A` to add a new node inside it. Add a second
+press :kbd:`Ctrl + A` (:kbd:`Cmd + A` on macOS) to add a new node inside it. Add a second
 ``VBoxContainer`` and name it *MenuOptions*. Select all three menu
 options, ``Continue``, ``NewGame`` and ``Options``, and drag and drop
 them inside the new ``VBoxContainer``. The UI's layout should barely