To do Alt + H + A + T + O on Mac in PowerPoint, download and install Accelerator Keys, then press Option, followed by H, A, T, then O.
Command: Align Text Options
This is how to do Alt + H + A + T + O 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 + A + T + O opens the Format Shape pane with text alignment options, allowing you to set precise vertical alignment, margins, and other advanced text positioning settings.