Device Groups

A single Everything Presence Pro Grid sensor may not cover a whole room. Device Groups let you combine 2 or more physical sensors into a single virtual device in Home Assistant — so automations can target "Master Bedroom" without ORing multiple sensors by hand.

A device group exposes:

• One occupancy binary sensor that is on if any source sensor's occupancy is on.
• The same for static presence, motion presence, target presence, and mmWave presence — each only created if at least one source has that entity enabled.
• One binary sensor per zone on each source — passing through with the zone's original name.
• One binary sensor per zone group you define — for combining zones from different sources into a single named area (e.g. left-bed + right-bed → bed).

If a source goes offline, the device group ignores it. The helper becomes unavailable only when every source is unavailable.

Creating a device group

1. Open the Everything Presence Pro Grid panel.
2. Switch to the Device Groups tab.
3. Click Add a device group.
4. Enter a Device name.
5. Optionally choose an Area to assign the virtual device (and its source devices) to.
6. Under Source devices, toggle on the sensors it should aggregate.
7. To combine zones from different sensors into one binary sensor, click Add a merged zone, tick two or more zones, give the merged zone a name (e.g. "Bed"), and click Merge. The merged zone appears under Merged zones; each one becomes a single binary sensor.
8. Sensors that will be created previews the exact entities the group will expose.
9. Click Save.

The new virtual device appears under Settings → Devices & Services → EPP Grid with all its aggregated entities.

Editing or deleting

Each device group in the list has a ⋮ menu:

• Edit reopens the editor — change the name, sources, area, or merged zones and Save.
• Delete removes the group and all its helper entities.

A merged zone has its own ⋮ menu inside the editor for editing or removing just that zone.

What happens when…

Event	Behavior
A source device goes offline	It's ignored. Helper still tracks the rest.
You delete a zone on a source	If it was in a merge group, the group keeps its definition but the entity goes unavailable. Add another zone to the group or delete it.
You rename a source device or zone	Display names update; the helper's entities keep their unique IDs and don't break.
You remove a source device entirely	The group keeps it in its source list but shows it as unavailable, and the helper ignores it. Edit the group to remove or replace it.

Where to next

• Automations → — put the group's Occupancy and zone-presence entities to use with worked examples.