To do Alt + H + A + T on Mac in PowerPoint, download and install Accelerator Keys, then press Option, followed by H, A, then T.
Command: Align Text Menu
This is how to do Alt + H + A + T 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 opens the Align Text menu for vertical text alignment within a text box. Options include Top, Middle, and Bottom alignment, controlling where text appears vertically in the text box.