Jeremy, It's my understanding that if you have a switch and it's activated in the software it will only switch from learn(autotune) to run(existing map on PCV). You can store two maps on the PCV but you will have to deactivate the autotune to be able to switch between maps. In order to create an economy map you will have to manually(in the software)change the cells you want to lean or enrichen.
Good to know, I thought the PCV would only hold one map. I still have a lot of learning to do with this high tech electronic gizmo.