Collections in Collections?

Is there a way/function to place a “collection” or subfolder inside any of my collections?

_For example: _
I have I have the “Jurrasic Park Movie Franchise” as a “collection”. When you open it up I have the 4 movies that have been released but then I also have 12 videos that are all BTS (behind the scenes). Total of 16 movies in the collection. It looks pretty sloppy and crowded. Is there a way to create a “sub-collection” or “folder” for all the BTS to fit into and label it “Extras” give it it’s own poster cover etc??? That way you only see 5 poster covers when I open the Jurrasic collection screen.

If not, at the very least, how do I organize the 4 actual movies to show up at the top of all 16 videos?
Right now they’re scattered among the BTS videos and they’re hard to find!

Thanks for your help in advance!

First of why don’t you add the extras as actual extras? Then they will show up on the movie they are attached to: https://support.plex.tv/articles/200220677-local-media-assets-movies/

If you still want the extras to be entries as regular movies use the sort field on each of the movies to sort them like you want.

The sort field could be numbers before the actual title: 01, 02, 03. The field is only used for sorting and will not show up anywhere else. If you edit the collection you can set it to sort alphabetically and it should show the movies in the order you have chosen. I have done this with a few movies e.g. The hobbit and LOTR to make the hobbit show up before the LOTR movies since they exist earlier on the timeline.