The Auto Match Pull Factors option is available from the session Timecode Rate menu in the Session Setup window. When Auto Match Pull Factors is enabled, Pro Tools adjusts audio and video playback rates as needed to match any changes to the current session Timecode Rate.Auto Match Pull is applied relative to the current pull up setting. While enabled, if the session frame rate is changed in such a way that the video would have to be pulled by an unsupported amount, the video remains unaffected.This setting is latching, is not enabled by default, and its state is stored with the session.