When on, your character’s current Key Mode determines which of its keys display in the Time Slider, Graph Editor, and Dope Sheet. For example, when in Selected Key Mode, only the FBIK keys on the selected FBIK effector or FK joint display. When in Body Part Key Mode, the FBIK keys for all the FBIK effectors and FK joints for the selected effector or FK joint’s body part display. And when in All Key Mode, all the FBIK keys (IK and FK) for the selected FBIK effector or FK joint’s character display.

When off, only the selected FBIK effector or FK joint’s keys are displayed in the Time Slider, Graph Editor, and Dope Sheet.