emusonacid! legacy

Hey everyone, new here, and have a fairly "noobish" question. I picked up an e-mu mophatt from a pawn shop recently and love the presets, but want to start getting into programming it myself. Is there a way to initialize a patch? Clearing out a preset and starting from a single sine or saw wave or something? Let me know, I'm sure this is a simple solution but I'm going crazy trying to figure it out. Any help is much appreciated. Thank you.

here is the manual