I like to shuffle play the songs in my playlists, and quite often I would like to listen to music from more than one playlist, like e.g. a mix from both The Rolling Stones- and The Who-, and/or Chicago blues-playlists.
The feature I would like to add into the Spotify apps is a checkbox next to each playlist, in order to be able to listen to music from several chosen playlists.
Updated on 2020-08-27
Hey and thanks for your contribution!
A similar idea has also been suggested here
Add your vote and comments in support there please : )
For now, you can create Folders, and shuffle the playlists that are in there.