Ability to chain playlists so they automatically roll from one to the next

I would love the ability to chain playlists so that if auto-play is enabled, when one playlist is empty (has no items or all items are marked done), DoggCatcher will automatically roll over to play the next playlist I specify.

This should work for any kind of playlist--dynamic, user, system, or virtual.

To implement, in each "Edit playlist" window have a menu called "Next playlist" that is populated with the names of all my playlists (minus the one being edited).

Here's my real-life use case. I group my podcast feeds into three dynamic playlists named "High," "Medium," and "Low." The names indicate priority for me. I want to hear all my High episodes first followed all my Medium episodes, then lastly all my Low episodes, regardless of dates. Currently I have to switch manually from playlist to playlist. I would like to chain them together so they simply auto-play from High to Medium to Low.

Thanks!