I need a chrome extension for my youtube channel

"I need chrome extantion for youtube web site.. this extantion will go into my youtube video and turn on some futures for me. Becarefull this youtube page is written on angularjs. Person is expect to have experimens on chrome extantion and angularjs. Details will given once challange is accepted." do you have any experince with Chrome Extantions? And with that chrome extantion will you be able to turn on some futures on youtube? After I upload a video.. you need to add end cards, cards and other stuff? Because They all say yes I can do but at the end of day sorry I couldn't do it, thay say. Don't please waist my time.. Please take a look at the page and answer me carefully! YouTube web page is angularjs so turning some futures are very tricky I need it in a day