I think what you want to do is make a new Preset in Space. You'll want to save Preset 2 as the HotSwitched version of Preset 1. Of course, you could just use the HotSwtich on Space, unless for some reason the Space isn't available under your feet to step on. Either way, it's still one press of a switch.
If the Space isn't there under your feet for you to step on, and for whatever reason, the first method I mentioned doesn't work for you, you should check to see if your MIDI controller sends MIDI CCs, as we allow MIDI CC of the HotSwtich. You'll want to map that CC to a specific button on your MIDI controller, or if your controller allows (most don't), piggy back the CC as part of your MIDI PC that switches to preset 2.