Acá. (https://www.google.com.ec/search?q=como+editar+en+camtasia+studio+8&oq=Como+editar+en+cam&aqs=chrome.1.69i57j0l5.6550j0j7&sourceid=chrome&ie=UTF-8)
https://www.youtube.com/watch?v=wW9zXeG7HLI