How to force RS to use chm help files with F1 key while working with RW8 project?

New help with RW8 is coming in htlm format. It is UNUSABLE.
Content listing layout is mess. Help box is covered with document caption and inaccessible.
F1 does not bring up keyword help selected in code.
Tested with Firefox, Brave and Edge - all the same.

In every aspect, chm was mutch more convinient to use. I would like to disable F1 to be using RW8 help folder. I did try to rename this folder, but this did broke F1 functionality completely instead of falling back to previous releases.

Any ideas?