Hello Tommy,
Thank you very much!
I should probably add dockable windows, at least as an option, even if I don't like them myself - they are like slippery soaps to me, docking when I don't want them to, and not undocking when I want that. Will not be in 2.90 IDE, but I will look at it later. Promise.
Installing 2.90 beta over 2.80 (IDE) will produce what you describe regarding F1. This should work once the new IDE is finished.
I *think* I have finally fixed the problem with filenames in the project window/tree. It happens when there are 'dependencies' outside the project directory (like special #include files, in some other directory).
I have found several problems myself with the cold folding, maybe one of them will fix your problem too...?
Ctrl+Backspace is implemented now. Will be in 2.90 IDE.
Pelle