Shape selection Mode :
This mode allow to select groups of polygons taht have the same shapes, even is they are moved / rotated / proportionally scaled

NB : This selection mode use A LOT of undo buffer

	Starting Shapes
	Select some polygons on your reference shape NB : A shape is defined by all polygons connected to this selection
	Set the Shape matching to about 95%, this is the detection threshold
	Shapes matching the source are selected.
	Same test with twisted planes
	you can force the detection to select only shapes with the same size
	Test with spheres : only the to smae sized spheres are seleted