@JulietLaid In case you still haven't found the answer, you just hit the pencil button in the middle of the screen on the bottom (For iPhones, I don't know if it's the same for other phones) and then you should see a button that says '+ Add A Part'. On the website, all you have to do is go to 'My Works' pick the story you want to update and then 'Continue Writing.' After that, you should see where it says '+ New Part.' I hope that helped.