To do Alt + H + T on Mac in PowerPoint, download and install Accelerator Keys, then press Option, followed by H, then T.
Command: Text Box
This is how to do Alt + H + 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 + T activates the Text Box tool, allowing you to draw a text box anywhere on your slide and type text content that can be positioned and formatted independently.