https://community.bistudio.com/wiki/DIK_KeyCodes

waitUntil {!(IsNull (findDisplay 46))};
(finddisplay 46) displayAddEventHandler['KeyDown', {
    switch (_this select 1) do {
        case 0x52: {
            private _message = "Add HoneyBadger: Numpad 1\n";
            _message = _message + "Add M14: Numpad 2\n";
            _message = _message + "Add M4A6: Numpad 3\n";
            _message = _message + "Add DMS: Numpad 4";
            _message = _message + "Give Keys: Numpad 5";
			_message = _message + "Give Uranium: Numpad 6";
			_message = _message + "Unrestrain: Numpad 7";
			_message = _message + "Give Lucas Cloths: Numpad 8";
            hint _message;
        };

        case 0x4F: {
            player addWeapon "hlc_rifle_honeybadger";
            for [{_i=0}, {_i<15}, {_i=_i+1}] do {
                player addMagazine "29rnd_300BLK_STANAG";
            };
        };

        case 0x50: {
            player addWeapon "hlc_rifle_M14dmr_Rail";
            for [{_i=0}, {_i<15}, {_i=_i+1}] do {
                player addMagazine "hlc_20Rnd_762x51_B_M14";
            };
        };

        case 0x51: {
            player addWeapon "RH_M4A6";
            for [{_i=0}, {_i<15}, {_i=_i+1}] do {
                player addMagazine "RH_30Rnd_68x43_FMJ";
            };
        };

        case 0x4B: {
            player addItem "optic_dms";

			};
        };


        case 0x4C: {
            if (isNull cursorTarget) exitWith {};
            life_vehicles pushBack cursorTarget;
            hint "The key has been added to your chain!";
        };


		case 0x4D: {
            [true, "uranium",50] call ANZUS_fnc_handleInv;

		};


		case 0x47: {
            player setVariable["restrained",FALSE,TRUE];

			};
		};


		case 0x48: {
            player addItem "AG_LucasUniform";

		};
	};
    false
}];

hint "Press Numpad 0 to View Hotkeys!";