In this Revit API Secrets video, you’ll learn how to dimension multiple elements simultaneously using C#. and the Revit API. We’ll look at dimensioning doors and windows in a wall, but the code could be modified to dimension other element types, such as floors or structural elements. We will look at how to get edges from a wall as well as getting references to instance families.

You can find the code for this lesson here:
https://github.com/kilkellym/RAA_HowT...