To: pop
To split video into scenes, just use the Split button to be found in the
Timeline/Storyboard area. Apply it at the beginning of the new scene.
As for v.3 of AVS Video Editor, as it is out-of-date, we cannot provide you with any recommendations. We would advise to use
the latest version of the program. If you face any problems with the newest version, please write back describing your actions step by step.
Best regards