Is there a way to set my default to Screen Only so I don't have to change it at the beginning of each day?

The Advanced Options give you the opportunity to customize your recording, here you can choose: Which Camera Source you would like your camera to be captured from (if you are recording a Screen & Cam or Cam Only video). Which Audio Source you would like your audio to be captured from (and if you're capturing your Current Tab, there's an option to add the Tab Audio in your recording). If you would like to see a Recording Countdown (3,2,1...) before your recording starts. Flip camera - great if you have text behind you so you don't display a mirror image. If you would like to hide the Control Menu in your recording.