I just feel awkward when making these Layout as shown (Preview Link)
I have 4-panels.
Red Panel is the outer. I use a FlowLayout.
Black Panel is the inner Panel i use normal panel.
Then, I have Green Panel which is actually a new container for Blue Panel.
Now, my questions are....
I would remove the outer red panel, Have one panel dock left, then do a split panel that fills the right and then modify the settings on how the upper panel (panel 1 property of the split panel) grows. You would basically say that the bottom panel (panel 2 of the split panel) is the fixed panel.