Fixes points on hair guide curves in space relative to the nearest polygon on the hair emitter, and prevents the points from being affected by dynamics or styling operations. For example, you can use this to create ponytails by fixing the points where the hair would be held together by a rubber band.
Locked points are represented by small blue padlocks when Locked Hair Points is on in the Objects.
To apply: Select some points on a hair object, and then choose Modify 
Surf Lock Lock from the Hair panel.
To display: Select the hair object, click the Selection button on the Select panel, and then click the Hair Lock Operator icon.
For more information, see Locking Selected Points on Strands [ Hair ].
