Keep Doorbell Camera LIVE not notification accessed?

Doorbell wifi camera
Is there anyway to ensure that the camera stays live streaming?
I purchased this for my mother who incapacitated… and has trouble getting the associated tablet to stay live streaming,

The camera will discontinue live stream after given amount of time, then the tablet will go into standby.
Then if an event occurs -she tries to get the tablet to switch back on then tries to get back into the app to see event notification then back to live stream.

A simple continue live streaming function should be available… but i dont know how to set it

also some event notifications come through very late as delivery people are shown walking away…