I’ve been using this approach since Nov 2019.
groups.yaml:
monitored_doors:
entities:
- binary_sensor.family_room_patio_door_alarm
- binary_sensor.fence_gate_alarm
- binary_sensor.front_door_alarm
- binary_sensor.garage_entry_door_alarm
- binary_sensor.left_garage_door_sensor
- binary_sensor.right_garage_door_alarm
automations.yaml
- id: '1574642382202'
alias: Set indicator when doors are open
description: ''
trigger:
- entity_id: group.monitored_doors
for: 00:01:00
platform: state
to: 'on'
...
It would be nice if there was a UI for editing groups, or creating automatic groups based on entitiy “tagging” or something like that.