"currently on the preset I can set the preset, command centre and programme".
What exactly do you mean by this? -
"I want to select patches on the tone for Roland Gr1 ideally in snapshots this is where it goes wrong."
What exactly "goes wrong"?
ANSWER - There is an instant control change that changes the song on teh RC300 and that works well. What I wanted to do is to go into snapshots from there on in that song and set them up as manual control change to call up a tone on the GR1.
"When I load the preset I want Helix to send an instant control change to call up the song on the RC300.
"When I change snapshots I want Helix to send a manual programme change to Roland Gr-1 to choose a tone or a patch.
Thanks