How to change the work of js script?

Question

css

Hello! A few questions about the script, here is the link https://codepen.io/gplitt/pen/NpwJqj
in field?
2 How to make the column duplicated on the right side when the button is clicked?
For example, by pressing 1 button, it was copied to the right and a point was assigned to each line, by pressing the second button, the 3rd column appeared on the right and each line was capitalized?

Answer 1

1. Process input instead of change
2. Don't understand what you mean