In addition to the standard Brightcove player templates that are automatically available to you in the Publishing module, you can use any number of custom player templates you create yourself. You specify a custom player template using Brightcove's XML player specification, BEML. After you create the XML document that specifies your custom player template, you add the player template to your account by pasting the XML into a field in the Publishing module. Once you've added your custom player template in the Publishing module, you can create any number of instances of your custom player, just as you can with the standard Brightcove player templates.