Hello MV world!

I need to substitute the default Hanging Rail drawing with the actual one we use in our company. 

Ideally I just want to swap the current 3D drawing to the one we use, keeping the origin the same so the formulas stay intact and the product/drawing remain parametric. 

I can't seem to find its name so I can locate it in the Hardware Graphics folder.

Anyone can help?

thanks in advance!