Hijack the Header Request Payload in Developer tools?

I am testing an angular 2 application in which problem is automation script picking up a virtual DOM attribute and because of which a dependent drop down list is not
getting populated through katalon automation script(Note doing manual test execution dependent drown list is getting populated only issue when trying with automation).

Is there a way in Katalon that i can hijack or change the DOM element using Jquery so that automation able to send correct attribute value to Request payload of header.

Attached is header request payload (highlighted in yellow) which i wish to hijack or change while automation test execution.