How to edit an email's textual version?

To edit textual version of email:

1. While creating or editing your email, click on the 3-dot menu and select Edit Textual Version.
2. Make your changes in the Textual Version window and click on Save.

Note: Textual Version is auto-generated and will also update if content is updated again in any of the email editors. This may delete any changes you made manually in the Textual Version.