Edit a simple CRUD with api Sencha ExtJS app

I have this existing secha extJS app, I need you to make the changes i could not customer and movies tab should have a pop up form when adding customer/movie -a customer can be deleted by the click of a button when selecting -it can also update by editing the grid list -returns table show all the returns https://localhost:44300/api/returns. -and when a list is clicked it will go to the details https://localhost:44300/api/returns/10013 -the details will have a button at the end to return each movie on the list and post it to https://localhost:44300/api/returns - --rental tab, will show the list of customer and movies, when a movie is seleted it will go to a list in the form, and then the movie textbox will be blank again then he will post it to https://localhost:44300/api/newrentals