Groove Music : How to add a local file to a local playlist ?

Hi,
im listening to a local playlist (files locally on my drive) and want to add another file to that playlist.

When i drag the file from WinExplorer to the playlist content or the playlist name or playlist header, its not allowing.

Using the + sign showing in the header of the playlist, it only shows me all the playlists i have, but not allowing for pointing to a local file on my HD.


? How do i add a local file to a local playlist in Groove Music ??

Regards,
Frank

ok gotit,
first open the file in groove music, then add it to a playlist there