Once you have created a custom component that you want to include in your players, you can add it to a Brightcove player template, using BEML. How you add a custom component to your player template depends on whether it's a visual component, which needs to be located at a specifed spot in the player layout, or a non-visual component, which doesn't need to appear in the player layout. In either case, you need to make sure that your custom component file is hosted at a URL that the Brightcove player can reach, and that you have accounted for Flash's cross-domain security constraints.