I have two Spider IV 150 HDs, one I use, the other I have in case I blow the first one up. I want to maintain compatibility between the user presets (the patches I wrote and assigned) from one amp to the other. I've seen people mention Spider IV Edit and customtone. Is this possible, to "port" the settings from one to another, I'm thinking upload and download? If so, will you please point me to the documentation and/or firmware that facilitates this? Thanks.