Editing Tool Additions - Align and Space

[trevor]

It would be a nice if you could add some multi-selection editing tools to align, space and rotate the objects in a selected group.
Note this differs from moving and rotating things as a group of selections, since the actions here happen on every item in the selection individually.   

The attached image is the menu from VISIO, you would need to make it align X, Y and add Z since left and top are not appropriate for three dimensions.

The bring forward / back menu picks might come in useful in 2D mode too.