Animate > Create Animation Snapshot > 
Time Range
Set one of the following options:
- Start/End
-
Creates an Snapshot for
the frames specified by the Start Time and End
Time.
- Time Slider
-
Creates an Snapshot for
all the frames in the time slider.
- Increment
-
Specifies the number of frames between which the Snapshot is
drawn.
Update
Set one of the following options:
- On Demand
-
- Fast (Update Only When
Keyframes Change)
-
Updates the snapshot when you add or change a
keyframe for the object with the snapshot.Won’t update if you change
an expression.
- Slow (Always Update)
-
Updates the snapshot if you change anything
in the shape or animation of the object with the snapshot. This
includes translating or deforming the object.