Cover page - Topic custom option

On the cover page, in the bottom right corner where it says: Click to Choose Topic, would it be possible to add a custom option where we could add specific types of books or the Elementary level. The current list is good but we do have other genre and the big need we currently have is to add specific levels along with the type (which would help Elementary teachers in particular to find the right level of reader). Also with the broad range of cultural topics, a custom option would give us more freedom to state those specific topics within the broad range (e.g. canoe, fish , sea creatures, sailing, diving stories – just a few specific to coastal people)

This is the first part of the request that Peter Frost requested in: Cover & Title Page Options