I am adding fields programmatically via the page_init and page_load and have this working nicely. I have the configuration panel displayed and want to see how I can add fields in the page_init or page_load and have them show up in the configuration panel as unselected. Pretty much I would like to load the pivot grid with only the single aggregate value showing and all of the possible fields unselected in the "All Fields" box in the panel. How can this be done?