Let you alter movements in various ways.
The settings in the Roll group adjust the roll of arms and legs, and work with the optional roll bones defined in the Roll group of slots (see Roll).
Lets you select the Absolute or Relative mode.
The rest of the Roll settings let you specify the bones that receive a percentage of the roll axis movement. For example, if the forearm of your model includes a roll bone, you can transfer part of the roll animation onto the roll bone using the Left or Right ForeArm Roll setting.
To specify how much of the roll transfers from the limb to the roll object (the default setting is 60%), set a percentage using the following guidelines:
When the In Place options are activated, you can lock the overall translation of the animation of a character on any axis. This lets you visualize a smooth loop of sequences such as walk cycles without having the character jump from one position to another as the play cursor reaches the end of the timeline.