Remap DOSbox controls

Something about playing Crusader in DOSbox that bugged me since the start are the DOSbox controls. CTRL+<F> are all special DOSbox keys. Which means I can't put the invincibility cheat on. I've found there's a keymapper in Dosbox but I'm too stupid to figure out how to bind the CTRL+F10 function to something else so I can use it to activate the cheat. Can someone explain it to me?

Never mind, I figured it out, hooray. Finally, after all those years, I can play with the invincibility cheat as well (as pressing F10 to resurrect me all the time got tedious at some points, especially when three threshers are zero'ed in on m)