This app allows you to create your own hotkeys by automatically creating an autohotkey script for you
http://www.coh2.org/topic/18454/celo--company-of-elo
If you dont know how to use autohotkey I can explain it further
For the tacmap, well it depends on what button you want it to be, I dont think CELO itself allows you to set the tacmap.
Here are some examples though,you can put these into the autohotkey script and itll change the tacmap to the button you want(unless you want it on the mouse,then thats more complicated)
ButtonYouWant:ButtonYoureReplacing(Tacmap Numpad0)
Tab:Numpad0
Shift:Numpad0
Space:Numpad0
Just kidding I just checked,CELO lets you set the tacmap too
Thanks so much looking forward to giving that a go when I'm home no excuses for me now.