cloudstricken

When I export a back up of video there are usually multiple video files. When I play the video back it reaches the end of the first clip and stops. Is there a way to play the clips one after another so that it looks like continuous video? Also is there a way to watch the back up from multiple cameras playing in the same player instance starting at the same time stamp? Player is the stand alone hikvsion player exported along with the back up. Thank you.