There’s something I don’t understand here: why when I do “Open Folder” and then save the session, closing it and opening it again I’m left with nothing?
Instead, if I open some files in subdirectories, the next time I reopen the session I’m just presented with the parent folders of those files, but I really needed to have the topmost directory to be able to access the whole tree structure whenever I reopen the session.

Is it possible? Or do I have to make a project?