Previous Attachments Display

I've noticed some nice changes to the 'insert previous' attachments option added to v4 and v5- and that these searchable - nice!

Is it possible to add an option for the user to display more attachments per page? Our production board has users with years of attachments and that translates into many, many pages to flip through. Can the option to display more images, etc be added to this function? I display that I have 245 pages of attachments based on the limited number of images shown per page.

Thanks!