hey Simon,
I was able to handle this with AutoInput, where you can chose which buttons it should select so in the morning it starts the yt music app,
clicks the Searchinputfield, enters the playlistname I search for and hits the first list entry,
its all done relatively easy with the AutoInput automatical mode where you can pick the elements from the app.
Then I let him choose random play mode and play. It is amazingly fast that way
also its sure not the most direct way to perform this.
Cheers, Andreas