I built on the comment Richard made in the Extended Cut video that the technique could be used for forms also, and created two buttons, one would generate a list of Reports, the other a list of forms.  

My problem is, how do I get it to clear the list box when I click on the button, prior to generating the list.  I don't want it to add the information to the bottom of the list. I want it to clear the list, then show the results for just that button.