Autoplay demos - configurable interval per step

I would like some steps of my demo to move on to the next step automatically after X amount of seconds or after the AI voiceover has finished talking. This can be configured per step, not all the same configuration. Some might want to move on after 3 seconds, some after 10 seconds and some never move on automatically until used input.

Use case: last step AI voiceover says "thank you for watching this demo!" and then moves on to the final chapter with a CTA buttons.