Step 1: Click ‘Viewers’
Step 2: Click the appropriate permission icon for the user whose settings you wish to adjust
Step 3: If the desired permission icon does not appear under the 'Permissions' column then click the 'More' menu
Step 4: Then click 'Adjust Security Permissions'
Step 5: Check/Uncheck the boxes for the permissions you would like to adjust
Note: You can also make a file available, revoke it from a user, or expire a file for a user by clicking the drop down menu in the 'status' field. You can adjust the expiration date by clicking on the date in the 'Expires' field.