[idea] Allow multiple mappings for each action

[TheTechRun]

idea / problem

I would like to be able to map an action multiple times.

requested change

Multiple maps for single actions.
Example:
focus_pane_left = "ctrl+h"
focus_pane_left = "ctrl+left"

why you want this

As of right now, there is only one way to map hjkl and/or left/down/up/right

[ogulcancelik]

this is available today via an array of keybinds