perfundo | a pure CSS lightbox | Animation library

So the code that is included saves a file based in the input given by the user and to make it a little better i decided to add an 'Add' button that is gonna create another 3 textinputs now i learned how to access them with id but it only saves the inputs in first 3 textinput boxes, i tried with a loop because i thought that when you took it the second time it might take the second input from the second 3 textboxes, but it didn't work.Ps sorry if the code is inefficient in some ways this is my first time making an app this is the py file

I am sorry if some parts are in my language hopefully it doesn't matter When I press the 'Add' button to add another 3 textinputs like those up the 'Add' button and I want to save the input that is put on those textinput boxes but I think I can figure that myself. I searched but couldn't find something useful. Also this is my first time creating something in this level so sorry if it is inefficient in some ways. This is the py file: