Lightroom :: Wont Allow To Add The Text To Description?

I've built a strip sheet to print. 4 strips with 4 versions (VIRTUAL COPIES) of the same image with different exposures.
 
I remember in the Print Module, you can add text. in this case I'd like to add the exposure (manually is fine) Example:  NORMAL     +1/3      +2/3    +1
 
So, this is a virtual copy problem.
 
It wont allow me to add the text to DESCRIPTION, Also, Under: Title, I can add say NORMAL, but that is the same for each image. Can't be individually labeled?
 
Is there anyway to label, title, description, etc, a series of the same Virtual Copies.