Create multi-choice videos with buttons appearing after 5 seconds the start of the video: how to do it? Options

[calmabubbasst]

Create multi-choice videos with buttons appearing after 5 seconds the start of the video: how to do it?

Hi everyone, how are you guys?

I recently saw this https://www.gotolstoy.com/interactive-video

and i thought i could come up with something fun with that, but i don't want to become a slave to a platform or a vendor,
so I thought I could get the same effect with a page that contains the intro video10 and below appear the buttons with links to the pages that contain video20 , video 30, video .. and continue doing so by loading the new pages (with the same page style to hide the transition) and new videos to continue the story.

So what I need are
- how to make the link buttons appear under the video after 5 or 6 seconds after the start of the video?
- how can I pre-load the next videos into memory while I'm watching the previous video? (so as not to have a long wait after choosing the new video and not interrupt the story)[color=#FF0000]

Could you help me again this time?