I have an assembly which is essentially a manifold (multiple 2" (inlet) lines coming into an 8" (outlet) line via weldolets).  I can model the basic assembly without issue, but I need the ability to put this into a design table, as future designs may require more or less lines, or require them to be closer or farther apart.  Is there a handy way of doing this, or will the assembly need to be redone every time a new design requires a parameter change?  I've attached the stripped down version of what I'm talking about.  Thanks.