Group_config: secondary_info: last-changed?

Is it possible to show the last-changed info for a whole group?
I got groups for door/window sensors, pir sensors and mobile phone presence detection which trigger my alarm system.

I’d like to see at a glance which group was triggered when for the last time.

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These icons should show “last-changed” state, like those entities (which are part of those 3 groups do):

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Is there a way to do it?