If I have a layer selected and then create a new Rectangle object, I'd expect that layer to be created directly above the layer I have selected (or even below would make sense) instead its created as the top most layer with in the current group of layers.

This is annoying because often the size of that rectangle depends on other objects in the group and because the layer is above them all you can see them if the new rectangle is going to be bigger them and it covers them up.