Feature Definitions for D&U nodes

Hello everyone,

To optimize our worflow, we're in the process of creating a couple of parametric cells for D&U nodes (mainly headwalls) that we will use to generate all the variations that we need or will need in future projects.

So I would like to know if there is an optimal method to create feature definitions (element models and symbologies also) for these nodes in bulk rather than creating each one alone.

Regards,