Hair System to have Shape-Keys

It would be very interesting that we could make different hairstyles without having to duplicate the entire hair systems. In Maya they have the Interactive Grooming which is one of the few things procedural in the software, where they have modifiers for sculpting the hair, so changing the hair combing is as easy as turning on and off the layers with those modifiers, and that is awesome and very useful! In Blender we could have a shape-key functionality for empty hair, for example. If there is already such possibility in Blender, please share here!