Hope everyone is getting ready for the fun we call Fall Foliage!

I have realized recently that a Chromebook being used by a Teacher connected to an external display does not lock when the lid is closed.

Looking through all the settings in the Domain Console I can not find the setting that would force a Chromebook to lock when the lid is closed when still connected to the external display (whether a monitor or IWB).

Anyone?

Thanks in advance.

Keith