API Name: global.AJAXSysListSaveWorker

var AJAXSysListSaveWorker = Class.create();
AJAXSysListSaveWorker.prototype = Object.extendsObject(AbstractAjaxProcessor, {
start: function() {
// Setup background worker
var worker = new GlideSysListSaverWorker();
worker.setListID(this.getParameter('sysparm_ajax_processor_list_id'));
worker.setViewName(this.getParameter("sysparm_ajax_processor_view_name"));
worker.setFieldsSelected(this.getParameter("sysparm_ajax_processor_fields_selected"));
worker.setProgressName("Saving Form List");

// Start worker in the background
worker.setBackground(true);
worker.start();

// Return worker progress ID to caller
var progressId = worker.getProgressID();
return progressId;
},

type: 'AJAXSysListSaveWorker'
});