Pressing the shortcut key should perform the associated action when the menu is open

**Is your feature request related to a problem? Please describe.**
A good way to learn the available keyboard shortcuts in any given context is to open the menu and see what's available. It would be good if I didn't have to manually navigate the menu to perform an action.

**Describe the solution you'd like**
I'd like the shortcut keys shown in a menu to perform the associated action