This seems to be very simple and Ive tried for 45 minutes now with very little change.
I have a Lister with Dual Horizontal Folders each with a folder tree. All I want is for my default lister to open with both folder trees having the "This PC" and "One Drive" expanded. no matter what I do it will not save this setting. Please help!
This PC isn't normally a top-level branch, but there is a special option to always have it expanded: Preferences / Folder Tree / Options / Expand 'My Computer' when tree opens.
For other non-top-level branches, you'd need to have them selected as the starting folder for them to be expanded when the window opens. (Assuming Preferences / Folder Tree / Options / Expand selected branch is on.)