A new and much improved way to create layouts in the HTML tools - email generator and document generator - using the same frames and grouped component system as the page editor.
Advanced Layouts
Now when you want to add a background image with text overlay, or components side-by-side in a horiztonal layout. Just create a frame and customize its style and layout - then add components inside the frames.
To move components in / out of frames right click the component and select move.