Combine playlists

      

If you want to combine 2 or more existing playlists, you will not find a button specifically for that.
Instead you can start playing the first track of  playlist 1 and then select save queue as new items in playlist 2.

Alternatively, you could use a python script. Using python would allow you to combine more than just two playlists in one go. This could also be used to realize different sorting options, for example randomly mixing all tracks or sorting them by genre or last play date. An example is this script.

Unfortunately, the year of release of the track is not available as a sorting criterion because the Plex database lacks such a field at track level. If you want to sort in this way, either the original playlists must already be sorted by year or the only option is to export the playlists to an external music management program. There, the tracks can be sorted according to various criteria such as the year of release and the new playlist can be imported back into plex. I have already described how to do this in another article.