Here I introduced a new set of tools for applying constraints between MicroStation's parametric solids. These tools can be applied to parametric solids and can use and be driven by variables in a very similar fashion as their 2D constraints siblings.
Click the video below to play it.
Video 1: Applying 3D Constraints
Video 2 - Placing Functional Components
Video 3 - Functional Components / Variations / Constraints
https://communities.bentley.com/products/microstation/w/microstation__wiki/24876.how-to-create-a-parametric-profile-creating-and-assigning-constraints