The "Pool" is the channel list on the left hand side of the screen. Graphs are populated with a drag/drop from the channel list. The popup graph legend should only display the channels that the calling graph has.
I normally can't share any code, but I'm designing this as a standalone application and I'm not far into it at all. Nothing proprietary in here yet - so sure.
Edit: I think I'm just going to drop the XY Graph on the popup into a subpanel. Use the subpanel vi scrollbar instead of the legend scrollbar, and then set the number rows. Not an ideal solution, but it's the best I've got.
Thank you all for your replies.
