Add a new search filter in Service Desk Request portal for an user field

[zerobarat1]

I am using Ultimate theming plugin to modify slightly the base functionality of Service desk and I was wondering if anyone tried to a new search filter to show only requests based on a customfield_id.

Adding the element using the GlobalJavascript was fairly simple, however, restricting the search yield to issues that contain my user name in that customfield seems quite complex at this point.