Live motion consists of two options, turn wheel to slide and create a move. Check out Rhino Motion - Menu Walk through
Turn wheel to slide allows you to control the speed and direction by turning the controller wheel. There are 25 speeds to choose from, and the move can be stopped at any time by pressing the wheel down.
Create a move allows you to create a move with set in and out points, ramping, looping, and duration. This mode is perfect for interviews, check out How to setup an interview in under 2 minutes.