I am aiming to achieve the following: https://i.sstatic.net/AxIXs.png
My goal is to generate a new div positioned directly below the input form that has been selected (each of the 3 input fields displayed will have a distinct div underneath). The selections made in these fields will then update the value in the dropdown menu (without allowing direct editing, but rather through the functionality provided in the appearing divs).
What steps should I take to implement this?