Hotkeys and my Mouse

Alright, so I bought a Razer Naga a couple months ago for WoW, and I stopped playing and switched to Guild Wars. Been back on here for probably a month, and I figured I might as well attempt to use some of the buttons on the side of the mouse. What I've been wondering is if there's a way for me to change the key for calling targets, It's control+space by default, but I can't seem to figure out how to change it. I don't see the option in the options, but I could be blind. Any help or responses would be appreciated.. thanks!

EDIT: Thank you Ori! It worked, I knew it was in front of me

While I seriously doubt that you are actually blind, given the fact that you play video games and seem to type quite well, you may have a habit of missing things right in front of your eyes.
Oh well, all joking aside, what your going to want to do is press "F11" to access the "Options" menu, then select the "Control" tab from the top, second from the right. There you will find the ability to change the command for every action in the game from calling targets, to moving, to controlling heroes, to...well you get the picture.

Hope this helps, if you have any questions about the command names don't hesitate to ask.

P.S. the command for calling targets is at the bottom of the list called "Targeting: Show Targets". By default it is set for Left Ctrl but you can change or add any keys you want.

u can use the naga software to write a macro for ctrl+space use skill... a whole skill chain if u wanted also u can use it for fast wepon set swaps macro with esc+ f#