Request: Action shortcuts

Add the ability to add actions to the toolbar or assign key bindings to them.

This feature adds keyboard shortcuts to actions:

I am not all that thick-headed, but I don't understand your post.

A way to set a number of keystrokes to open an action is to add the ampersand somewhere in the action group name. This serves as a hotkey.
So if you name an action "&Cleanup" then
will open that action group.
There is currently no way to adapt the toolbar in any way.