Not able to edit back of invitation

This is a new one for me. I am creating an all in one invitation. I need to create the fields for the template, however, when I go to the back page, the front preview is the only one that shows, so I am not able to label the template. I have tried 3 different browsers. At first, I thought it was a browser issue. 

@homespuncottage   are you still having an issue with this?  If so can you attach a screenshot and product link/id so I can look into it for you.

Joanna