User Guide > Animation > Animation > Animation Menus > Animate > Rigging > Character Setup > Character Setup Menus > Animate >
Animate > Set Key
If you turn on Set
IK/FK Keys in the options window for
Animate > Set Key > 
, you
can subsequently use
Animate > Set Key as
an alternative to
Animate > IK/FK Keys > Set IK/FK Key.
If you use Animate > Set Key for an object that’s not an IK handle, a joint controlled by an IK handle, or an object connected to an IK handle, the Set IK/FK Keys option is ignored.
If you turn on Set Full
Body IK keys in the options window for
Animate > Set Key > , you
can subsequently use
Animate > Set Key or
the Set Key hotkey (s key) as an alternative to
Animate > Set Full Body IK Keys.