By default, a group is “on” if any thing in the group is “on”. I would like to invert this as per the documentation to set the group to on only if all the lights in the group are on.
The part that is relevant:
Group behavior
By default when any member of a group is on then the group will also be on . Similarly with a device tracker, when any member of the group is home then the group is home . If you set the all option to true though, this behavior is inverted and all members of the group have to be on for the group to turn on as well.
Does anyone have an example of setting this correctly?