We ride in pairs (rider + pillion) on day trips and longer touring. The system works fine for the two of us, but in larger groups conversation is not conducive for the pillions.
It would be ideal for our Sena to allow us to chat privately in pairs AND also connect the pairs together for group chats with a simple tap maneuver. This would allow pairs to chat without a lot of clutter to the others in the group. As a pillion, this helps keep the ride interesting. But the riders need to be able to talk to each other for navigation, road issues, finding food/lodging, etc. So they need to be able to connect to a larger group as necessary. In other words, the pairs should be able to join or leave the larger group without losing communication with each other.