While this blog is dedicated to the AEC industry, this time I am addressing an issue specifically for engineers. In Revit MEP, you can have a schedule that refers to two different category types by using nested schedules. This allows you to do something like listing all of the spaces in a project, and also list specific items that are in each space. While this capability has a lot of potential, this article will describe the process of listing each space in the project with what electrical fixtures (with circuits) are in each space. The following image is the final product of this article: