Shuffle across multiple playlists

[Marigra]

I would love to have the option to use “shuffle” across multiple playlists, not just within a single one. I often create playlists separated by theme, and sometimes I want to listen to random songs from a few selected playlists at the same time. Currently, shuffle only works inside one playlist. It would be great to have a shuffle feature that mixes songs from different playlists, but only from the ones I choose