speaker notes shared but hidden by default
would be amazing to be able to share with speaker notes but not have them omnipresent. have a button or keystroke that toggles show-notes. so by default they aren't shown, but if a student/audience member wants to open them up they can - without having to go into full speaker mode.
Add speaker notes to each slide to help you remember what you're going to say ... During your presentation, the speaker notes are visible on your monitor, but aren't By default, PowerPoint is set to use Presenter view when you run a slide show.