Select the top face of the new form. A 3D temporary dimension tool will appear.

Select the profile shape and the four green boundary reference lines simultaneously.

3. Step-by-Step Tutorial: Creating a 4-Point Parametric Panel

This ability unlocks incredible flexibility, letting you create infinite configurations from a single, intelligent family. It drastically reduces the need to build multiple, similar families, saving you significant time and effort. This makes them the perfect tool for creating complex elements like twisting facades, organic architectural forms, and repeating patterns that adapt to any condition.