How to interact with pop up menus with Apple Script

So, Now I want to interact to some pop up menu in order to select different values. I post a screenshot of the window and a "Window_UI_Exploration" of the window.
Especially I want to interact with the pop up button "Processing Output Mode" and "Processing Input Mode" that in the actual imagen are set to "create individual files" and "clip by clip". There are the option to set to "create continuous files" and "entire selection".

How can I do that?