The techniques disclosed herein provide a set of tools that help event organizers better prepare for important events by facilitating features of rehearsal sessions. In some configurations, a system can create a rehearsal session in the process of setting up a meeting. Thus, if a meeting organizer is setting up a company all-hands meeting, the tools provide options that allow event organizers to setup multiple rehearsal sessions effortlessly in the event scheduling flow. The tools enable a system to perform tests that simulate event attendees. This allows an organizer to test specific user activity involving each users' experience in joining a meeting or performing common attendee behaviors like a virtual hand raise or a reaction. The system also provides intelligent technical checks that automatically test each presenter's device settings and displays real-time telemetry data to effectively communicate any performance issues to a meeting organizer.