Wish list -- Adjusting timer so just the person presenting sees it?

The new timer app is great! But, for managing large meetings with over 1,000 people - we don't want the alarm to go off. Instead, we want to only be able to assigned and set the timer for the presenter(s) of that section...so they see it and get the alert but not everyone out. Think of it as a gentle way to notify presenters their time is coming up and done. Would love to see the timer app evolve with more possibility than the current all or nothing approach.