Hi, chuckebaby
Thanks for the reply!
I’ve just tried to dock Browser to the left side, and then back to the right side.
After this it stays collapsed in other views, and it will open if I press ‘B’.
The same occurs if I undock it or if I dock it bellow.
But on some projects I can open any view and Browser will be collapsed without any tweaking, and it will open if I press 'B'.