Is there a way to populate Favorites with all books on device?

I am blown away by KOReader-- such a great reading experience compared to stock readers. Thank you so much KOReader team.

I am wondering if there is a way to populate the Favorites view with all books on the device without adding them manually as a Favorite. Since books are sometimes buried in folders and subfolders it is tedious to add them manually.

I see there is an open issue on github for a "flat view" of the library (https://github.com/koreader/koreader/issues/8472), which looks interesting and useful.

But it occurs to me that populating the Favorites view (or History, for that matter) with all books would be a nice way to have a "flat" view of all documents.

Is there a script someone has made to accomplish this?

Thanks in advance.