OK. Here is how I did it. Import the playlist. Select all files and create a tag. Open track Focus and select that tag, then you can click on the 3 dots and click on the heart. It seems like there is an extra step required, but it did what I wanted.
OK. Here is how I did it. Import the playlist. Select all files and create a tag. Open track Focus and select that tag, then you can click on the 3 dots and click on the heart. It seems like there is an extra step required, but it did what I wanted.