I was modifying some of my key bindings but it wasn't easy to see what keys were unmapped and available for use and/or which actions would be unbound if I used a particular key. It's not a big deal but it would be nice to have a "Are you sure you want to unbind "x" from action "y"?" Another example is that I accidentally clicked on one of the slots to make a new binding and then used my mouse wheel to try to scroll up and down the list. Bam! Mouse wheel up is now something different than zoom in.