As I use the new ESV Study Bible, I would like to have an option that would work well also in other resources of that kind, namely, to open map or picture in the Biblical Places or Things by the double click on that item. Usually we have more tabs opened than one and maps and pictures are very small then and there is no easy way to expand them.
However in Biblical Places or Things it works great. So to be able to open it by double click there would be a great enhancement IMHO.