On each of the Superior Drummer 3 "Drums and Mixer" presets, there is a arrow on the right side of it you can press (or right click anywhere on the preset) to show you a menu, where you can select "Load Parts...". There you can decide what to load. Enable everything except the drum kit, and the kit will be kept.
We have gotten some requests before regarding changing presets via MIDI, and we have placed it on our todo-list!