1. Assigning multiple keys to single action.
It's nice to have options, especially for some commonly used things.
2. Allow binding side mouse buttons.
Currently the game doesn't recognize side mouse buttons for some reason, and I'd like to take advantage of them.
3. An option to let "End turn" act as "Start combat" while in real time mode.
Currently "End turn" button doesn't do anything outside of combat mode, and this added functionality seems quite intuitive to me.