Notify multiple users in People column

Hi everyone

Hopefully someone might be able to help :pray:

I have multiple rows as Subitems and within this each row is owned by a different user in the People column.

Now what I would like to do is have one button or some kind of action that I could do that would notify all users in one particular Subitem People column (happy for this notification to be in either Slack, or email etc…).

Can it be done?

Thanks in advance for any help :grinning: