[otrs] Groups and Users question

I'm trying to understand (no luck so far and the guide is useless on this issue) how to email groups. For example let's say we have a group named Group1 that supports ProductABC. When a customer email/calls in with an issue about ProductABC, I want to be able to: 1) In email tickets select the "Group1" in the To: Field. So that everyone in that group would get an email notification. 2) In phone ticket, the Owner choice should have an option for the group not the individual. How do I do the above in 2.0? Thanks, Serge