Animation Modifiers (Anim Modifier) are a type of native or Blueprint Class that enable users to apply a sequence of actions to an Animation Sequence or Skeleton asset. An example of this includes (but is not limited to) creating automatic foot sync markers by pin-pointing on which frames the right or left foot is place on the ground. Using this information, Animation Sync Markers can be added to frames where a foot bone is at its lowest point (or touching the floor).