Processing and Formatting Effects > Flame FX > 2D Transform >
Motion Blur Settings

Motion Blur button
  Enable to apply a motion blur to the selected clip.
Samples field
  Displays the number of frames to sample when creating the blur. The samples include the current frame, and an equal distribution of past and future frames.
Phase field
  Displays the degree of phase shift to apply when creating the blur.
Shutter field
  Displays the number of frames for which the shutter stays open. For example, when the shutter value is set to 3, every third frame is as a sample.
Lock Transform button
  Enable to lock the transformation of the motion blur effect.