Use tokens in other fields (in addition to renaming)

I've found that I copy/paste the same info in to multiple IPTC fields (doing tethered headshots in quantity). For example, the subject's name is used not only for the filename but also in the title field and description field. It would be nice to be able to implement tokens in other fields, in addition to the naming. 

i.e.:

Title: John Smith
Description: Headshot of {Title} for {Location}.  
Location: ABC Company 

I'm sure I could come up with other places to do this too. For example, the Person Photographed field. I wish there were a way to do Lastname-Firstname but that isn't a standard IPTC field. That would allow me to insert {Lastname}-{Firstname}-{Image Number} for the filename and {Firstname} {Lastname} for Title.