To do Alt + W on Mac in PowerPoint, download and install Accelerator Keys, then press Option, followed by W.
Command: View Tab
This is how to do Alt + W on Mac in PowerPoint with Accelerator Keys, the native ribbon and alt key shortcut solution for Mac users who get more done with PowerPoint.
Alt + W switches to the View tab where you can change presentation views, show/hide elements, and access zoom and macro options.