Include a COPY from one field to another option

You have an edit field option,

you have a move field option,

but it would be really nice to be able to copy from one field to another, particularly the Record Number field.  this would allow you to keep track of what the record number was for another library (and append text to it say-LMWs #552) and for other purposes such as in the How to discussion http://forums.thomsonscientific.com/ts/board/message?board.id=en-howto&message.id=24