Drum Map Question

Using one of the project templates from the Hub i’m using Halion Sonic Se with (GM) Stereo drums.
When i try to use the gm drum map there’s no sound from the drum track.
I can see all the beats in the drum map window which are correct but there’s no sound.
Any ideas please.

It’s OK i’ve found my inability.
The Halion Sonic SE vst and the instrument track have to be set to channel 10.