So after many hours… Groove Agent SE which ships with Dorico 5 IS recognized by Doric but it seems that Groove Agent (the one month trial version) is not. I’ve been working with Groove Agent because it has many more sounds than Groove Agent SE. I reloaded SE and I was able to create a new playback template. Hopefully if I were to buy Groove Agent, it would be recognized by Dorico. I’m a bit frustrated with it so I might try EZDrummer instead. Thanks for your input.