This object defines accelerator key combination
for the menu item. The menu item's caption is automatically extended to represent the key
combination, but that doesn't affect the value of the Caption property. To deactivate the accelerator,
assign null value to Key property.
Properties:
Ctrl - If Control key takes place
in accelerator combination.
Alt - If Alt key takes place in
accelerator combination.
Shift - If Shift key takes place
in accelerator combination.