DynamicGroupController and attributes

[therealdb]

Hey @toggledbits I'm back to trying to optimize a couple of things based on dynamic group.

First of all, I think I found a typo in the doc:

          primary_attribute: "binary_sensor.state"
          primary_attribute_value: |
            d = false;
            each id in members: d = getEntity(id)?.attributes?.power_switch?.state or d,
            d

I think the correct code snippet is d = false,

All that said, my use case for dynamic groups is to group 3 different climate devices, so I could easily command them at the same time. Commands are good, but sometimes I want to check if any of the devices are on, and that's easily done with a similar snippet as the one you have in the docs. But this is limited to the primary attribute, while I want to have any of the attributes in the group to be driven by a similar logic (while all are null in the group). ie, access hvac_control.mode and see if any of the unit is set to cool, or heat. Is that possible, without re-defining an expression in each of my rules? Thanks!