A Youtube showing the Automatic Setup Routine which occurs on First Boot.
https://www.youtube.com/watch?v=d9eJpqCnRmo
Edit April 25, 2020 -- Youtube moved the video. I think it was the one now linked to. And in answer to the questions of how I recorded it. I didn't. I just provided a link. And don't know how the poster did.
After you've created a SaveFile or SaveFolder, you can always re-run the routine from the Menu: Menu>Setup>QuickSetup first run settings.
And for those like me who prefer the Taskbar at the bottom: Yes, like almost everything else about Puppy, your desktop is customizable.
The end of the Youtube shows the choices offered to Save or Not. The Presented chose not to. Consequently, none of the settings and other customizations made were preserved.