Collapsing the Animation Layers
If you want to keep any or all of the animation layers that you have created, you can collapse them and apply them as fcurves into the base layer of the animated object. Once the animation is on the object, you can use it as you would normally use fcurves, such as by editing it, saving it into an action source, and so on.
Collapsing combines the result of all animation layers with the base layer unless a layer is muted. When the layers are collapsed, every parameter that was keyed in the animation layers has a resulting fcurve. Collapsing plots the layers into fcurves and then applies fitting. Redundant keys are removed from the fcurves and the original keyframe locations are preserved.
After the layers have been collapsed, they are removed from the Animation Layers panel, along with each layer source and clip, so that only the base layer remains.
To collapse animation layers
1. In the Animation layers panel, mute the layers that you don’t want to collapse into the base layer (click the m button beside each of those layers).
2. Click the Collapse Layers icon in the Animation Layers panel.
The layers that are not muted are collapsed into the base layer’s animation and are removed from the Animation Layers panel.
Every parameter that was keyed in the animation layers has a compiled fcurve.

Autodesk Softimage v.7.5