You can use the keyboard to select actions.

Press 1 to select the first listed action. 2 for the second, and 3 for the third. 

Sir Camil has 2 actions, so you would press 3 to end the turn. Nahla has 3, so she would press 4. You can always select End Turn by pressing 0.

What's next?

I have a linear interpolation system to work on.

I also want to revisit drawing buttons and icons.

I also will look into the map selector - it's not really indicative of what you're selecting, or what is active.