Sorry, what I meant was that if you add a the std UNO BB svg into a new part with Part Editor and it AUTO assigns then that part should auto assign because it is an extended UNO. All you just have to relabel the names in Connector. If it doesn’t auto assign then then it doesn’t matter.
Basically I was thinking if UNO svgs auto assigns and you modify the 3 UNO svg and it would already be assigned when added to a new part. But if that’s not the case it’s not many pins to assign.
Damn I don’t have 7zip and it won’t unpack. Should have Send to Compressed folder in Win.