I am really confused about how to set up my playback instruments so I get both the piano and horn to sound. You can see from the screenshot the audio setup shows channel 1 is piano. Channel 6 has the horn I want on Channel 2. I don’t know how this happened. I don’t want Piano 2 at all. How do I delete instruments and rearrange the endpoint setup?
Just do Play>Playback template… choose a suitable template and hit apply.
This will reload all audio to suit the instruments held by the Players in Setup.