Youtube's SECRET Hidden Feature!!!

Btw, this is going to be my channel trailer, hence the bit about subscribing. lol my bad if it comes off weird to you guys who are already subscribed, but I've been getting told for ages to make a channel trailer, so this is going to be it. 

Youtube's SECRET Hidden Feature!!! 
Youtube *clearly* didn't want anyone to know about this feature, but I'll tell you, cus I look out for you guys. This shit will change your life!