Joining Mass Instances in a Project

1. Click Modify tabGeometry panelJoin drop-down (Join Geometry).
2. Select the first mass instance, and then the second.

   The overlapping form of the first mass cuts into the second mass. The mass floors of the second mass are adjusted to report accurately gross floor area in a mass schedule.

If you move the joined mass instances, their properties are updated. If you move the mass instances so that they no longer intersect, a warning message displays. You can unjoin them using the Unjoin Geometry tool.