The image shows the following items in the Designer's header that you use to work with your extension:

• Product Feedback. This button allows you to submit feedback to Oracle.
• Notifications. This button opens your notifications list.
• Preview. This button opens a preview of your extension in a new browser window.
• Publish. You use this button when you are ready to publish your extension to the target branch. It's common for a project to be configured so that merging changes to the target branch automatically deploys your changes to the target environment.
• Options menu. This opens the dropdown menu for user settings and other Visual Builder Studio options.