I used to think there was a way to do this, but maybe memory serves me incorrectly?
I just want to keep the browser the same horizontal + vertical size as load different ensembles.
But...
In 6.5 if I load a compact ensemble, the whole left-side browser shrinks too, which is disorienting, and makes it hard to scroll up and down.
I know that some ensembles have Panelsets with expanded views, but not all of them. And sometimes I just want a mini view but the full left browser.
What makes it harder is there's not yet a scalable Reaktor UI that I know of, per the earlier beta discussion.
I want to keep that whole browser locked, at a minimum. I don't mind having blank space on the right.
Any way to to make this less painful?