When we used the WYSIWIG editor, we could directly create a 'new content' (from Email Content section) then choose the desired template in the dropdown on the side, next to the HTML editor. But for the D&D editor, this template dropdown is non-existent.
Thus we would always need to go to the Template Library, choose the template and then 'Create new content' which is more troublesome! It would be great if we could pick the desired template from the D&D editor directly!