If you use custom key bindings, as you probably have discovered, the interface still tells you to press the default key to perform an action, but you need to press the key that you bound that action to instead. It was frustrating the hell out of me, I kept having to look at the manual to find out what the key shown on the interface's default action was to know what key I needed to press to get something done. I edited the games controlmap.txt to fix this. Now the key that shows in the interface does what it's supposed to do instead of the remapped key. I also changed the map scroll to the arrow keys instead of WASD, and + and - on the numpad zoom in/out on the map.