Choosing an editor
By default, Mailcoach uses a plain textarea field to edit campaigns and templates. If you'd like to use a feature rich editor, you choose a different editor on the editor configuration screen.
Monaco
Monaco is a powerful code editor created by Microsoft. It provides code highlighting, auto completion and much more.
On the editor configuration you can customize the looks of the Monaco editor.
Unlayer
Unlayer is a beautiful wysiwyg editor, that requires no knowledge of HTML. It also offers image uploads.