Stretchable pieces ? help needed please.
 

Hi,
I have a target window that also displays extended targets.
The top part shows the target, HoTT and my pets target.
The bottom part is split into two, on the left is the extended target list, scrollable vertically and on the right is the buffs, also scrollable vertically.

What I am trying (and failing) to do is make it so the extended target area and the buff area are resizable horizontally, i.e. make one wider and the other narrower if that makes sense.

I've been trying different combinations of screen pieces, layout pieces and anything else I can think of and haven't managed anything apart from crashing the client in new and interesting ways :P

If anyone feels like giving it a try or just has any suggestions I would really appreciate the help.

I have attached the file (will need to change the the WDT_SquareNoTitle template to something else).

Thanks

Ang.