To do Alt + H + 7 on Mac in PowerPoint, download and install Accelerator Keys, then press Option, followed by H, then 7.
Command: Character Spacing Menu
This is how to do Alt + H + 7 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 + 7 opens the Character Spacing menu, which allows you to adjust the spacing between characters in your text. Options include Very Tight, Tight, Normal, Loose, Very Loose, and More Spacing for custom values.