1 person found this helpful
I don't know how to update the instance number, but a handy trick that might help you is to use Tools > Assembly Visualization. There you can see basically a BOM of the parts, and it is easy to see which ones are used more than once because they have a different icon. The buttons at the top will toggle Flat/Nested view and part grouping settings.
That's GREAT! That little trick has saved me about an hour today!
Thank you very much Jamil.