To do Alt + H + T + 1 + V on Mac in PowerPoint, download and install Accelerator Keys, then press Option, followed by H, T, 1, then V.
Command: Remove All Sections
This is how to do Alt + H + T + 1 + V 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 + 1 + V removes all sections from your presentation without deleting any slides. All slides remain in place but are no longer organized into sections. Use this to start fresh with your presentation organization.