Right-click anywhere in the Footstep track in Track View (Dope Sheet) to display the Footstep Mode dialog. This is a modeless dialog and can remain visible while you continue to work in Track View.
This dialog allows you to:
Free Form suspends the physically based dynamics that normally control biped motion. This is essential when you want to make the biped fly, or sit down, or fall over. Note that the freeform period must be between footsteps.
The freeform area appears as a yellow block between the footsteps.
The footstep blocks can have any one of four time settings displayed for them. You can show only one of these at a time.
The footstep step number is always displayed on the footstep blocks (in boldface).
Both footsteps 0 and 1 begin at frame 0 and end at frame 19.
Both footsteps 0 and 1 begin at frame 0.
Both footsteps 0 and 1 are in contact with the ground for 20 frames.
You can also turn on the following two numbers for the intervals between the footsteps. You can display both numbers at the same time by selecting both boxes.
Footsteps 0 and 1 share a double-support period of 20 frames.
The no-support period between frames 3 and 4 and 4 and 5 is 12 frames.
The foot air duration for the left footstep track between frames 3 and 5 is 31 frames.