Autodesk 24000-000000-9860 - Revit Architecture - PC User Manual page 832

Rotate with component: When checked, the tag rotates with its beam. When unchecked, the tag orients
itself with respect to the view frame.
Attachment Point: Defines the initial location of the tag along a beam (start, middle, or end) and is the point
the tag tracks as the beam is lengthened and shortened.
When enabled, a tag leader extends from this point.
<None>: Locates the tag in the middle of the beam by default.
794 | Chapter 12 Working with Structural Components