In addition to uploading HTML from a file, you can also use the built-in “Code View” to edit the existing HTML in the template.
To edit the HTML, locate the "Code View" button in the message editor toolbar. This button appears as "</>" icon on the right side of the formatting toolbar, next to the "Protect", "ltr", and "rtl" buttons.
Make any changes you like to the HTML code in the code editor window. For example, you can add custom HTML tags, modify existing markup, or paste HTML from external sources.
When you're finished editing the HTML, click on the "Code View" button again to toggle back to the "regular" visual editor view and see how your HTML changes will appear in the formatted email.
