Add entire playlists to "songs"?

[NewJakeMan]

Im trying with no luck to add an entire playlist to my songs. I dont want it just in my libary. I want every song in playlist ____ to be in my song section. All i have is the android app. Thanks for bearing with my stupidity and frustrations.

[ArturCieszyński]

As far as I know, there is no way to add an entire playlist to songs.
You can do it on the desktop app though. Just go into your playlist, press CTRL + A and then right-click and add to songs.