First, RTTFAQ. We can't help you find stuff without knowing what operating system you use and you should be able to find [it would help to know what sort of keyboard you are using, particularly the layout. In this case, note that many laptop keyboards use part of the main keyboard as a numerical keypad if Num Lock is on; would that help you?

In UQM 0.6.2, you can edit keys.cfg in your UQM settings directory; just change or add definitions for Menu-Zoom-In and Menu-Zoom-Out.

Thank you. It worked perfectly. I was able to remap = and - to zoom in and out. As for my keybord its a MacBook that does not have any numpad support  , thanks Steve Jobs. I kind of feel a little dumb not putting 2 and 2 together. Thank you for your kind help.

Please help me. My computer does not have a num-pad and I need to change the keys to something useful. Which file do i edit to do this and where do i find it.