How to change video on a page when my customer watch another video?

Hi, want a make a page that shows “my videos”

in a private webinar my customer can ask me a question and I wanna show him a video directly..

So in my admin panel there will be 20-30 video etc. and When I push one video it will directly go to customer page.. How can I do that?

something like”chat” but sending not “message” sending “video live”