10,998 questions
No, not yet. Microsoft is currently working on this, and it should hopefully be available by end of next quarter. Just in case you can go vote it up over at the Feedback portal: https://feedbackportal.microsoft.com/feedback/idea/99fe0515-272e-ec11-b6e6-00224827bbc2
And in the meantime, you can use Live events if you want to hide the full list of participants.