FAB Bulge Module

I was fooling around with the FAB Bulge Module but have been unable to draw any chits. I right clicked on the cup. A box pops up indicating that I enter the number of chits I want to draw which I do. It then says that I should click and drag on the cup graphic which I have done but all that produces is a big rectangle/box that gets bigger as you drag it.

Anybody know how you draw chits in this module? Thanks.