How to handle skill points from an item #pathfinder


In my pathfinder campaign I looted an item that gives a +2 to intelligence and the  she also said it is retrograde so I get 1 skill for ever level I have  
I know there is the GM award tab where I can add more skill rank but is that the only way?
I have to keep track of what ranks came from the item in case I lose it. Is there a way to include that on the character sheet when I print it out?

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