Is there someway to turn off the sound for when friends are arriving and leaving? I find it distracting from the game because the sound is unappealing and sometimes players come and go and come and go. I don't want to know this when I am playing.

It would be nice to be able to invite more than one person at a time. When clicking away from an invitation, the initial invitation box disappears with no way to go back to cancel it. Can waste time and limit ability to see who is more likely to respond to an invitation.