Joe is correct and I would love to see in a later upgrade to Camtasia a couple of options added.
1. The ability to record the Webcam only in Fullscreen 2. Have the function/ability like in Snagit Video Recorder to be able to easily switch from the Webcam back to the Screen or Vie-Versa. If it is in SnagIt which is a less cost to own than Camtasia 2018 I am not sure why TechSmith has not added this option yet to Camtasia 2018 and hope they consider it. I have put it in the ideas post awhile back and hope they do consider this for the users.