Freeze and Unfreeze a Vector

1. From the Define Curves panel, click either the X or Y vector radio button for a curve with a Math data source.
2. Click Freeze on the curve calculator.
   You are prompted for permission to break associativity with referenced vectors.
3. Click Yes.
   The selected vector is frozen and will no longer reflect changes from external sources.

To unfreeze a vector:

4. From the Define Curves panel, select the frozen vector by clicking on its radio button.
5. Deactivate Freeze on the curve calculator.
   You are prompted for permission to re-establish any associations with referenced vectors.
6. Click Yes.
   The frozen vector is now unfrozen.