Hello,
Please provide a 'Combine' function for System Families. Over the course of a few Tenant Improvements and Renovations a wall can be made up of 4 or 5 segments. It's easy to Split the wall, but difficult to combine them.
Same for Ceilings, Floors, and Roofs with Demo/Existing/New all overlapping in space. A roof or floor can be made of numerous inlaid geometries.
Ultimately this has its origin in a larger issue of simplifying a model after a few projects.
Thank you for your consideration.