Create conversations and choosing participants

Hello there. I feel the conversations in Asana are restrict as to the audience they reach (Team members ou Project members). I end up looking for other ways of contacting people to talk about our projects or a gorup of tasks for exemple. Slack, Whatsapp, Skype or whatever.
It sure would be a lot easier to be able to create a conversation and to be able to choose who the conversation participants would be, but sitll have it related to that project ou team. Would be a awsome way to keep another important part of the work in the same place.