Match Keyboard Experience with Pointer Device#262

I am ok in using Scrintal, but I have a hard time teaching some of my students. The problem is that the experience using keyboard is different from the experience using the mouse.
Also, even using the keyboard we still need to use the mouse here and there. That makes Scrintal neither mouse-friendly nor keyboard-friendly.

Examples:

Undo: only available via Keyboard (CMD+Z)
Link to an existent card: only available via Keyboard (by pressing + and start writing the name of the card).
Adding external link to an existent text: only available via mouse (I tried CMD+L for that but nothing works)

Also please include the Back / Forward options ( cmd+[ / cmd+] )