To do Alt + H + S + H on Mac in PowerPoint, download and install Accelerator Keys, then press Option, followed by H, S, then H.
Command: Shapes
This is how to do Alt + H + S + H 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 + H + S + H opens the Shapes gallery, displaying all available shapes including rectangles, circles, arrows, flowchart symbols, callouts, stars, and more that you can draw on your slide.