How play/sync play is now is a hassle for users to work out that's why I suggested the example below to PG, you just left click the track/s you want to select and they highlight BRIGHT, now if you hit the Play button in the Plugin it will play those tracks, if you hit the Sync Host button they will play along with the DAW.

I was demonstrating on the Win Plugin and it's an older version without the double click the drag icon turns blue.