Hi, thanks for the feedback, one reason that single keys are not used as shortcuts is that the map editor has a text-entry tool that accepts most single alpha-numeric keys as input, so single key shortcuts such as WASD (or cursor keys) would not be possible there. Another is that no dev environment I've ever used has allowed single keys other than F1-F12, Ins, Del etc to be specified as shortcuts (in design mode at least), I'm not saying it isn't possible but wouldn't be practical for the first reason.
nb. All windows that have a 'zoom' op already have a shortcut for zoom in/out, try CTRL + mouse-wheel.
F1-F5 are currently used for colour selection.
Thanks though, I will think about your requests further.