Rotate around axis rotates your sketches, closed sketches, faces, bodies, and groups around a selected axis. It's a different rotation than the one you find in the Move / Rotate / Scale, where you rotate around a Pivot point.
The Rotate around axis flow
1.Tap on Transform/Rotate around axis
2. Select the shapes and groups you want to rotate
3. Tap on Next
4. Select a line or edge for the axis of revolution
5. Tap on Next
6. On the Preferences Panel set if you want to have a rotated copy of the selected items, or you want themselves rotated.
7. Tap on Done