In Digital Media Converter, this feature is not available. To combine clips of all popular formats try the Video Edit Magic by DeskShare. With Video Edit Magic, you can not only combine multiple video clips but also arrange them on a flexible 9-track timeline and enhance them with professional effects and transitions. For details, visit https://www.deskshare.com/vem.aspx You can also try Video Edit Magic Express, which has only the most important features required for video editing. For details, visit https://www.deskshare.com/vemexp.aspx