Currently Blink only allows for one userID & password to access the Account along with Videos and real time viewing.
I have had to Pass along the User ID and Password to someone else so they have access to view the Videos and real time Viewing. This is TOTALLY against everything I do in Network Security. Ended up doing this for the Safety of my mom as I use the the Blink XT inside as a Home Monitoring camera.
Should be able to Grant access ( a Circle of trust as another app calls it ) for other users that would only have access to videos and optional real time viewing.