@donq Sorry for delay - and very many thanks.
You are quite correct , and it was silly of me not to notice the "Browse Folders" link. Doing that also allows one to start a New Folder, so very helpful.
But it still means that if you want to open a folder you must click the > symbol to the right of a folder and scroll down the tiny window that opens, often repeatedly if you have many nested folders - and, if you want to go up a level or two, that is also cumbersome.
I hold no particular brief for M-sh*t's Word (I knew better predecessors), but that Save layout works very well for me. I may have to go back to Firefox, though that does not allow one to save as PDF,which is why I switched to Opera.
Thank you again for a swift and helpful response.