Hacky Custom Keybind

private _displayEH_ID = (findDisplay 46) displayAddEventHandler ["KeyDown",
    {
        params ["_control", "_key", "_isShift", "_isControl", "_isAlt"];

        private _override = false;

        diag_log _key;

        if (_key == 57 && _isShift && _isControl) then { // Space + Shift + Control

            _override = true;

            //You action here (will be local, will need remote exec for server)

            _control displayRemoveEventHandler ["keyDown", _thisEventHandler];

        };

        _override;
    }
];