If you just want to resize one control when the panel grows, I would advise against using the Scale Contents on Resize attribute. You're better off just resizing the control programmatically yourself, whenever you receive an EVENT_PANEL_SIZE in the panel's callback.
CVI 7.1, which will start shipping in a week or two, comes with a splitter control which you can use to pretty much customize what kind of scaling you want. If and when you get this version, check out the example program samples\userint\docking.prj which pretty much does what you are looking for.
Luis
NI
