Is there a way to lock the window size of groups like "Objects"?  Every once in a while, one of the group windows expands a lot -- not sure why.  
Also, I attempt to organize objects in a group like the attached image.  When I add a new object, it appears to shove it into the group and moves other objects.  Typically, I add an obj, do texturing, etc, save as a tgo, delete the obj, and add the new tgo.  By then, the organized grouping is a mess.  Seems the ability to lock objects (positions) in a group would be a nice feature.