This function adds a button to the report which can link to another html page. It enables you to create additional navigation around your report and even use it to imitate filter buttons for your data. For alignment you can use "center" or "right" to position the button in it's grid 'cell'.
Basic format: "content_name": ["create_button_link", "button_text", "location_id", "link_path", "colour", "alignment"]
e.g: "help_button": ["create_button_link", "^ Back to the top", "#A5", "help.html"]