You can broadcast a presentation that you've already scheduled, or broadcast a new, unscheduled presentation. If you want to start a broadcast you haven't previously scheduled, you still need to specify which options and settings you want to use. You should start a broadcast about 30 minutes before you actually want to present to allow time for your presentation to be uploaded to the server. This also gives you time to send messages to waiting viewers before the presentation starts.
→ To learn more about how to schedule a broadcast presentation, see “Scheduling a Live Broadcast” in this chapter.
You can tweak your presentation until the moment you click the Start button. After that, your presentation files are copied ...