1. From within the container, select the More Options [1] on the resource you wish to share, then select the Share [2] button.

2. From the share window, select the Edit Share Settings [1] option.

3. Enable the Display Registration Form [1] toggle.

Doing this will add the Auth=invitee [1] to the end of the share URL. This can be added to the end of any share URL to set the auth for viewers who follow the URL to view the materials.