I am creating gutter components. I have made a line base profile family with types for different diameters. I am loading that into my generic family to add into a sweep.

I would like a parameter in here to change profiles. Or is it simply easier to make my profile using reference line and drive them directly.

Whilst i'm here, can you lock an offset arch? I want to drive one arc and maintain the offset to the second but i'm stumped, it's staying put when i'm making an extrusion but it does what I want in a profile family and follows the first arch.