How can I have a metadata view of the books on my device, instead of the folder view?

[ItIsMe]

Been using KOreader for a while and mostly enjoying it, but one thing that is frustrating, is when I use the default software it reads all the metadata of the ebooks on the device and uses that as a way to display the books, but in KOreader, basically it is just a file manager where I choose a "root" dir, and then can add books to it, or put the books in subdirs and stuff.

The thing is how can I sort the ebooks using meta data, view by author, by series, by tags and other things like that?

For example if I have a series and it is 12 books, in the file view it is alphabetical, so even if i put that one series in a subfolder, all the books are out of order.

I know there is this thing called "collections" but having to manually add eveything to them yourself is a real pain.

Isn't there a metadata way of viewing your device, like most of the devices I have owned had as the base way of viewing the books? Maybe a plugin or something?

thanks!