Resizing/scaling panels

[tokola]

Hi,

I am having the following problems while scaling a TabPanel:
1.Keeping its initial proportions. I've noticed that in my example (attached), setting the scale back to 1 does not reset the panel to its original size (use keys 'q' and 'w'). Might this be a combination of Tab and Grid panels or something else?
2. The included quad nodes in the GridPanel do not resize proportionally. Is this the expected behavior? Resizing them individually can be a pain.
3. How can I keep the panel in a fixed position in the window when resizing the window? Do I have to calculate the offset and change it on update (it it's not stuck on any of the corners or the center)?

Thanks!