Mixins are a special type of controller that allow you to augment or change the functionality of an existing controller. This is particularly useful when you need to change something about how a built-in controller works.   Basic structure This is the boilerplate for a mixin: ;( function($, _, undefined){ "use strict"; ips.controller.mixin('mixinName', 'core.global.core.table', true, function () { // Your code goes here }); }(jQuery, _)); The method signature is: