Youtube Related Videos and Ajax infinite scroll

Dear Developers and experts,
Hello,

I have two matters to share with you and to get your kind assist:

1. I embed Youtube videos using Elementor Plugin, at the end when videos stops it shows related videos , I would like Kindly ask you is there any way that when video ends instead of showing those suggested videos in screens it goes back to the begin point and shows the initial image with playing icon on that?

Any code can be helpful?

2. I have created few PAGES in Elementor and I want to navigate between them via Ajax infinite load, I would like to ask you is there possible to be done in Elementor or needed any add-ons?

Could it be done by some coding, adding short codes and etc…?

I will be so thankful for all the advices you might give me for those two matters.

Always with my Best Regards,
Ali