Steffen isn’t wrong, I’ve done that before on a show that I needed to share a limited number of RF receivers (same Input Sockets) but for the first part of the show we were using bodypacks and Lavs, routed to a Lav group for GEQ, later in the show we switched the bodypacks off, and used Handhelds synced to the same receivers,
Another way I could have done this was simply saving it as Scene1, with specifics safes and filters marked. and labeled it Scene Lavs, then Next Scene could be Scene Handhelds. Or in other words for your scenario, Save a Scene for the Clarinet, then make a scene for Sax.
Then for easy access you could use your soft buttons for Previous scene recall, and Next Scene Recall.