Adobe Bridge CC : metadata copy from one field to another for multiple files

So I am using Bridge CC for managing audio files and have many many MP3's that I need to copy or move one field of metadata to another.

ie:  copy "Audio Artist" field to "IPTC Core Creator" Field

     move "IPTC Core Description" to "Video Log Comment" field

Is there a script I can add that will let me select multiple files, and have it copy or move all the info from one of these fields to another?

Thanks

Scott

sootysax@yahoo.com