1. Install the Code Editor plugin and place the Code Editor element on your page
2. Set the initial content and customizations on the Code Editor visual element properties

3. Optional: use the workflow action called "Set Code Editor Value" to set the value of the Code Editor if needed

4. When the code in the editor is ready to export, use the "Publish Editor Value" workflow action

5. When the editor value is ready, an event called "Code Editor Value Published" -- you can use this event to save to your database (or whatever you'd like to do with the code). The value is saved as the state called "Value" on the Code Editor element.