Simplify
Use this option to delete any unnecessary keys a given curve may have. Horizontal and vertical keys will be deleted separately.
This function can be useful when working with motion capture files, which can contain thousands of unnecessary keys. Applying the Simplify option will make editing your motion capture files much easier.
If only every 10th key should remain, set Time to 10 B. If only keys with an interval to the previous or next key greater than 50 units should remain, set Value to 50. Of course both settings can also be applied simultaneously.