When I add a button to the quick access toolbar to call a macro, I notice that the help text (i.e. the text that appears when the mouse hovers over the button) is simply the name of the macro with which the button is associated (e.g. "Macro1").

How can I change the help text to something meaningful for the user? (E.g. "This button sets the contents of Cell A1 to 'Hello World!'")