The point of interest manipulator lets you center the camera movements on an arbitrary point on the model. When you place the Point of Interest manipulator, subsequent camera moves are centered around that point.

Use the Point of Interest manipulator
Hold
+
to show the point of interest
manipulator and do any of the following:
| To... | Do This |
|---|---|
| Place the Point of Interest on a curve or surface. | Click and release on the wireframe.
|
| Move the Point of Interest across the object. | Drag the circle at the center of the manipulator.
|
| Look down the normal at the Point of Interest location. | Click the light blue arrow on the manipulator.
|
| Look down the U or V tangent at the Point of Interest. | Click the red (U) or green (V) arrows on the manipulator.
|
Hide the Point of Interest manipulator
+
in the Perspective window.
The point of interest is now invisible, but still in effect.
+
in the Perspective window.
The current point of interest is now locked. You cannot change the point of interest by dragging the manipulator or clicking geometry until you turn off the Locked option.
I can’t see or change the point of interest?
The point of interest feature may be turned off. To enable the point of interest:
r.