Feature Request: Folders for audiobooks by same author and from same series

[N1z3]

Hi,

first of all, thank you very much for developing and maintaining this app. It's a really nice and simple audiobook player that basically offers everything you need!

However, the "Not started Yet" category becomes a bit confusing for me when I have many audiobooks by the same author that belong to the same series (e.g. The Three Investigators). I sort audiobooks from the same series with the same artist name and album title, while only the title differs (e.g. Artist: Robert Arthur / Album: The Three Investigators / Title: Episode 1; Episode 2; ...). This results in a long list of titles that I haven't started yet, which makes it more difficult to scroll through the entire list before I can see other audiobooks in my library.
I imagine that a folder in the list could help to make it clearer. The album cover of the first episode in here could be displayed as the cover, while a small folder icon in one corner indicates that it is a folder containing additional titles.

Would it be possible to have such a folder instead of individual titles in the "Not started Yet" category if the artist and album title are identical and only the titles differs?

Edit:
As a possible suggestion for a naming scheme, I could imagine it looking something like what I mentioned here: #3314.
The audiobook folder could display the author and album name, while in the folder the various episodes would display the author and title of each episode.