Add tooltip to 2D, 3D, Script, AssetLib buttons that shows keyboard shortcut (Ctrl+F1, F2, F3, F4)

[allenwp]

Describe the project you are working on

Any Godot project that uses more than one of the 2D, 3D, or Script editor workspaces.

Describe the problem or limitation you are having in your project

As a new user I learned that I could discover keyboard shortcuts by viewing the tooltip of buttons shown in the editor. For example, if I hover over the Add Child Node button, the tooltip helpfully teaches me that the keyboard shortcut for this action is "Ctrl+A":

But when I hovered over the 2D, 3D, Script, and AssetLib buttons, I found that there was no tooltip to teach me what the keyboard shortcut was:

This is a minor issue because I was able to discover the keyboard shortcut by searching the keyboard shortcuts in the Editor Settings.

Describe the feature / enhancement and how it helps to overcome the problem or limitation

Add tooltips that show keyboard shorctuts to the 2D, 3D, Script, and AssetLib buttons. This will help new users learn these keyboard shortcuts more easily.

Describe how your proposal will work, with code, pseudo-code, mock-ups, and/or diagrams

The proposed tooltips could look something like this:

Tooltip text could read:

• Open 2D Workspace (Ctrl+F1)
• Open 3D Workspace (Ctrl+F2)
• Open Script Editor (Ctrl+F3)
• Open Asset Library (Ctrl+F4)

I'm not sure what the keyboard shortcut is for the new Game workspace, but its tooltip could read "Open Game Workspace".

If this enhancement will not be used often, can it be worked around with a few lines of script?

N/A

Is there a reason why this should be core and not an add-on in the asset library?

This is a usability improvement to existing core functionality.

[tetrapod00]

For anyone considering implementing this: unlike most editor buttons with shortcuts, here, the shortcut and the button are implemented separately in two places.

The shortcuts are registered here: https://github.com/godotengine/godot/blob/0eadbdb5d0709e4e557e52377fa075d3e2f0ad1f/editor/editor_node.cpp#L7924-L7929

The buttons are created here, when a "main screen plugin" is added: https://github.com/godotengine/godot/blob/0eadbdb5d0709e4e557e52377fa075d3e2f0ad1f/editor/editor_main_screen.cpp#L235

I also tried to implement this but wasn't sure how to proceed from that starting point, since these buttons are added dynamically when a main screen plugin is added.

[kitbdev]

One way to implement this would be to add support for user main screen plugins to have shortcuts, then the built-in ones can use that.