Hi Yuriy
For my understanding: I just now updated from 2026.5.23 to the latest version (windows) and encountered that you have split the window into three parts? Before if ALL were shown and I clicked to one font I went into preview of this instead of ALL and had an arrow to go back to the preview of ALL. Now I have left the folder structure and so on (as before), in the middle ALL (if I do not hide it) and right the specific font preview. You changed this after 5.23?
Second question: how to undo hiding of the side bar? - Edit: Ok found the arrow to expand it again - a very narrow position area with mouse over, so I faced it after many moves.
Regards, Matt