The subject says it all, is there a way to reset the instance counter back to <1> again?  I used to be able to do a "Save As" with a component, rename the component, save the assembly and close it.  Then, I'd open the assembly back up and do the same steps but set the component's name back to the original name and it would re-number my instances.  Now, SolidWorks seems to be too smart to let me do this anymore - there seems to be an instance counter odometer-type thing that always keeps track for you and you can never get back to <1> again...

This isn't a real necessity, but I would like to verify that all the items in my BOM are accounted for and the instance numbers used to make this a lot easier for me!