Help: Feature inclusion help in my cloud-based chat app

So, I’m making a Cloud-DB based chat app. And I want more features. How can I include chat bubbles, YouTube, Facebook and Instagram Video support? Also need Voice and Video calls. (Detailed instructions please)
I would appreciate it, if u answer my qs

I see you have a reading time of 7 minutes. Instead of asking for complete instructions i would suggest to educate yourself by searching the community, follow tutorials and learn Kodular piece by piece.