I'm doing an eval of Release 2015 right now, but I also have this behavior in RH10.
Is there a setting whereby I can set image properties while inserting (or changing) an image file, without having to close/reopen the dialog? This is a truly annoying issue that I can't seem to find a solution to within RH. (Not to mention it's also extremely counter-productive!)
Any tips/suggestions would be greatly appreciated. If it's a 'bug' how do I go about getting it fixed?