Hi,All: I finished a addin with sw2006API, enter solidworks, I create a cube, then, enter menu "Simple PMP",I can find "PMP" to show , if I select a edge,in selectbox control box,I find a selected object, my problem is : how do I get edge object coordinate information that be selected,for example: begin point,end point. please give me some code or hint, I think that all object to be selected may into a collection, or a ref object,but there is nothing in API, thanks a lot.