1. Add as AppConfig option (default: off) 2. If enabled, add Gutenberg block to add the certificate button anywhere in a post (placeholder: not the actual certificate button html with options) 3. On save, parse page to see if block is added. Add post meta. (only if enabled in app config) 4. In CertificateController, add default button placement if there is no block present 5. Always use the current certifcate button