Wire-Pin tool
The Wire-Pin tool generates guide curves that deform individual hair/fur strands or groups of strands. You can use it to make very specific changes to individual strands (setting up a custom flyaway, for instance), or to create a set of curves to use as inputs for other operations such as clumping.
You can choose from Full or Deformer modes and set the tool options when using the Wire-Pin tool. For further information on how to use the tool, refer to Move the hair with wires and Wire-Pin Tool Settings.
Example clump of hair after wire-pin selection:
Example clump of hair inheriting the relative distortion from the guide: