Challenge Que notification

[Srw]

There needs to be some way to notify the host of the challenge to hit the force start button. From the many many group challenges I've joined that never started, it seems that a lot of people don't understand what the force start button does or maybe they don't understand that someone strong enough to solo the group challenge has joined their que. Some way to say to them "Start the challenge, my damage will cover it" would be nice.