I am meant to have the Website Builder v7, however the interface looks absolutely nothing like it does is this video that shows v7.
Is the personal web builder different than the business web builder, or did they sell me the wrong version?
If you're using the new GoCentral builder, there is no option to add custom HTML. I'd suggest giving our live support teams a call to confirm which builder is in your account, and to make any changes if the product does not meet your needs. Thanks.