Hi!
I have changed the 365 template layout in admin and added CSS class to the section. In example you can take the Copyright section which is FullwidthBoxedContent) and add box1 to CSS Class, save and close. Look at page now, the Copyright section is fullwidth, but other sections are 1200px . This is happened to every section if you change the css class. I think there is a bug with template layout, the sections must be Boxed not FullWidth, otherwise the page must be fullwidth, but it isnt. Can you comment this?