Allow last-changed in entities

[cadavre]

Currently we can easily set last-changed as secondary_info, but we cannot set last_changed parameter in entities list.

    entities:
      - type: 'custom:multiple-entity-row'
        entity: binary_sensor.0x00158d00034d6c68_contact
        entities:
          - attribute: last_changed

Because there's not such attribute, last_changed is entity state attribute.

Feature request: add possibility to access entity state attributes, like last_changed and last_updated.

---

EDIT:

It could also be solved with #35 but I can see points in that issue.

For this case imagine using "motion sensor" as an entity which can display info like this:

[ ] Office windows           [opened] [8 minutes ago]
    ^ entity name             ^ state  ^ last-changed

Would be so nice to read!

[danielo515]

I would also love to see this implemented. Thanks

[benct]

Support added in version 4.4.0. Use attribute: last-changed or attribute: last-updated.

[ildar170975]

Thanks a lot!