When creating an xml file (or editing existing one), you have those tags:

pinID="2"  pinTop="3"  pinLeft="1"  pinBottom="3"  pinRight="1"

Can someone explain me exactly what does those numbers ? I tried to edit the faceroom.xml file to create a greater preview (200 pixels wider and higher), but I can't move the two buttons: "Random Face" and "Reset Face".
I edited the top, bottom, right, left and also the rect.top, rect.bottom, rect.right, rect.left values. I could ungroup those two buttons and move them individually, but I would like to keep the "group" assembled.

I guess the problem comes from the PinID, pinTop, ... values. But each time I change one of those values, the buttons simply disappears...