Follow the steps below to save a channel strip in MainStage:
- Open the Channel Strips by choosing View > Show Channel Strips or by clicking the icon in the upper right of your MainStage screen
- Click on "Setting" at the top of the Channel Strip you'd like to save.
- Click "Save Channel Strip Setting"
- It's now saved. If you want to add this sound to a different MainStage patch, you can go to a patch, add a Channel Strip by using the "+" icon and then navigate to the channel strip you saved in User Channel Strip Settings:
All the Channel Strips you've saved should be in "User Channel Strip Settings" in MainStage. You'll also find them in Music > Audio Music Apps > Channel Strip Settings > Instrument in Finder, this Finder folder mirrors it.