Specifies a combination of key modifiers, on recognition of which the command will be executed.They are None - no modifiers are pressed Control - ctrl key Meta - meta key im mac Alt - alt key Shift - shift key
Alt - Specifies the alt key as a key modifier.Control - Specifies the Ctrl key as a key modifier.Meta - Specifies the meta key in Mac.None - Specifies when no modifiers are pressed.Shift - Specifies the shift key as a key modifier.