Add a contact to an existing 2-person conversation
Is there a way to add a person to a series of text exchanges that previously involved only 2 people?
I see how to add people to group texts on iPhone: https://support.apple.com/en-us/HT211302 . However, the instructions do not apply to a 2-person exchange. (The "info" button is there, but the "add contact" button is not).
iPhone 7