Click on the thing you want to change to change it. Press the camera button when you're done. If you have the link, type it in or copy it and it SHOULD resume... if you're having any problems then tell me. To see your code look in the top right corner- it's pretty hard to miss.
This is very basic, but I'll try add more stuff to it. :) Be sure to check out my friend- @Piggy_awesome