That would be this thread.
And I agree there’s probably room for improvement in OP’s familiarity with the several Hubitat apps that can send notifications, rather than a need to add features to one of them.
Historically, requests for “can’t we add just one more feature to basic rules?” have been met with skepticism by staff, because some apps are meant to have a deliberately simple interface to create automations, even though that can limit the flexibility of that app.
As I mentioned in the other thread, anything that isn’t actually accomplishable in basic rules can generally be done in rule machine, which is intended to be exceedingly flexible (but more complex to use).