If your space is "Manager" of an organizational unit, you can share a playlist with other members of that organizational unit.
When a shared playlist is modified, it is automatically updated on the other spaces where it is used.
To share a playlist with the other spaces of an organizational unit, go to the "Playlist" tab :
Choose the playlist you want to share, click on the three dots then "Edit" :
Check that the access rights are set to "Everyone", then select the OU you want to share the playlist with :
Click on "Save"
The member areas of your OU can now broadcast this playlist !