Hi & and thanks very much for your interest in our product.I think the best thing to do would be to invest some time to learn how to customize the file via HTML. It may sound counterproductive but it’s actually the opposite. Being able to customize the files via HTML makes life much easier, easier than ANY builder editor, because you are in complete control. You can follow the commented sections in the HTML file and customize your templates.Other than that, as far as I can see Mailchimp apparently allows you to open a free account, customize an email template via their builder (customizing the TEXT CONTENT is pretty easy, but theirs is not the most user-friendly editor out there for sure), and then export the HTML file to use it later on Salesforce.I don’t want to repeat myself but learning how to customize an email template from the HTML file itself would be the best investment in the long run. It’s not even going to be a long run, I’m sure you can get used to it pretty quickly.Kind Regards,Bedros