View two PowerPoints together, changing slides together?

I need to get two different slideshows set up in a way that, once in slideshow view (its presenting), by changing slides in one, the other will automa

I need to get two different slideshows set up in a way that, once in slideshow view (it's presenting), by changing slides in one, the other will automatically change to the slide with the same slide number as the first.

Example: Two computers, Computer A and Computer B, have different slideshows. I get to slide 15 on Computer A, and all of a sudden, Computer B is also on its slide 15, even if they have different content.

or:I need to get two different slideshows set up in a way that, once in slideshow view (it's presenting), by changing slides in one, the other will automatically change to the slide with the same slide number as the first.Example: Two computers, Computer A and Computer B, have different slideshows. I get to slide 15 on Computer A, and all of a sudden, Computer B is also on its slide 15, even if they have different content.

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