The default setting for all folders are set to "immediate"(all students will be able to view the content immediately once it is uploaded).

Turn off sharing (whole folder)

  1. Under edit mode, you may click on folder setting

  2. Go to Settings>Availability, change it to "never"

  3. The video will now be shown as "Not available to viewers"

Turn on Sharing (individual video)

  1. Click on Settings under each video

  2. Under Overview>Availability, change the setting to "now"
  3. The video now will be available for all audience