This is a very simple question from a VB beginner. How do I set up the button property to allow the user to press the Enter key as an alternative to clicking the button to activate the button's Click event procedure? Thanks

Set the “Default” property of the button to True. Then the Enter key will trigger the _Click event of the button. Only one button can be set to be the default button at a time.
If you set the “Cancel” property to True, the button will be clicked if the user hits the Esc key.