The Use Center flyout provides access to three methods you can use to determine the geometric center for scale and rotate operations.
Main toolbar > Use Center flyout
Topics in this section
Use Pivot Point Center
The Use Pivot Point Center option, available from the Use Center flyout, lets you enable rotation or scaling of one or more objects around their respective pivot points.
Use Selection Center
Lets you enable rotation or scaling of one or more objects around their collective geometric center.
Use Transform Coordinate Center
Lets you enable rotation or scaling of an object or objects around the center of the current coordinate system.