This is fantastic and was what some of our users were missing, however there seems to be no toggle switch to enable/disable it on a per-presentation basis.

 

As an education establishment our users are used to a 2160p 75" display and they pack a lot of information into their slides. Using the same slides for remote learning through Teams on a 1080p laptop (or worse) results in the active slide being tiny and the Teacher really struggling to use it. Those that have turned on the public preview (without realising) are now emailing me en mass asking how to turn off presenter mode.

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