Changes an action to a keyhandler
| _hashKey | String |
| _key | New key [integer] |
| _settings | Array of settings (shift, alt etc) |
| _type | Type of keyevent [String] - default keydown |
["cba_somesystem_keyevent", 44, [false,false,false]] call CBA_fnc_changeKeyHandler;
Sickboy