The Danish G70 Users Club should have all the information you need there (and more!), so I'd surf in there (join if you feel like it, it's free!) and see what you can learn.
But quick answer.... replacing a factory UPG does not delete it. The UPS stores 144 UPG's in a list (Set List) where you can call them up quickly, in the organization you prefer. So make a new UPS, and start storing your gig UPGs there.
See you in Denmark......!
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An arranger is just a tool. What matters is what you build with it..!