I used to have an Xpan I, and yes there is a way, although it escapes me now. Best bet is to go to the Hasselblad Web site and poke around in the Xpan Q&A. If that doesn't work, just call HasselbladUSA. Very helpful folks!
I will tell you, as I recall, it will only record the total number of exposures, including the several hundred test-firings that Fuji did before it left the plant.