Sticky Keys?

To make a long story short I need to be able to make my right mouse button a sticky button, or toggle. I have physical limitations that make it hard to hold certain keys and buttons while trying to press others. My first question is what file or files needs to be edited? My second question is what specifically to enter in said files?
I've tried doing it myself, but I lack any real kind of programming ability.

Specifically, what are you trying to bind to the right mouse button?

From what I understand, you want (as an example) Q to use one skill, and hold right-click + Q to use another skill?

I'm afraid I can't help you, but I can try to clarify for those who can help you.

I'm not trying to combine it with another key I'm trying to get it to behave like it is Caps Lock. I would like to bind it to alt fire.

I don't think it's possible to toggle with one key, but it should be possible to do it with two.

Ala. RMB to start, MMB to stop.

Would that suffice?

Well, i know that it was possible to create toggle aliases in UT2k4, Bioshock and if i'm not mistaken Borderlands for things like crouching and so, but honestly i haven't messed with the Unreal engine in years, so i can't remember how to make them, or even if it's possible to do one for toggling Alt-fire.

They used to be done on the User.ini file, i can remember that much... I'll ask around to some old friends who played UT with me back in the day and may remember those alias commands, i'll post back if i can find something.

You should be able to do this fairly easily with AutoHotkey.

I'll mess around with AutoHotkey to see if I can get the desired results, but I'd still like to know if and how I can do this to just MNC in case I have a need to later. If at all possible I'd like to keep it to a one button toggle setup. I've had some success doing this kind of thing in Team fortress 2. I was able to find the code to make crouch into a toggle in their Wiki and paste it in. I've looked around in the HostileEditorKeyBinding.ini and HostileInput.ini to see where the key maps are. I experimented with changing some of the arguments from true to false in the HostileInput.ini file, but no dice. I'm fairly confident that HostileInput.ini is the file I need to tweak.