I'm guessing that the question that the programmers would ask in reply - "Where would you want the planes placed?"
General it wouldn't be a problem if the part in question is symmetrical, but weldment parts aren't necessarily symmetrical - meaning that the software wouldn't know how to handle the reference geometry in every single instance.
I think the way relative planes are handled, is quite good at the moment. If you have a large complex weldment, you can insert the parts into new parts, and then re-insert the parts into a new assembly about the origin. Which gives you the ability to easily hide / configure your weldment assembly in a more flexible manner (unfortunately the parts properties aren't transferred with the current version of Solidworks).
W.Sanders
CSWP
General it wouldn't be a problem if the part in question is symmetrical, but weldment parts aren't necessarily symmetrical - meaning that the software wouldn't know how to handle the reference geometry in every single instance.
I think the way relative planes are handled, is quite good at the moment. If you have a large complex weldment, you can insert the parts into new parts, and then re-insert the parts into a new assembly about the origin. Which gives you the ability to easily hide / configure your weldment assembly in a more flexible manner (unfortunately the parts properties aren't transferred with the current version of Solidworks).
W.Sanders
CSWP
What is the purpose of the planes that transfer in with a part?