Layouts
All possible layouts are already created under Themes - Page layouts. Example integrations can be found on the Layouts page. You select the layout in the page under Layout settings.
One-column layout
For the one-column layout, select the page template fe_page_mate and enter the body class default-col. You set the page template and the body class in the page layout under Expert settings.
Layout with left column
For the layout with a left column, select the page template fe_page_mate_left and enter the body class left-col.
Layout with right column
For the layout with a right column, select the page template fe_page_mate_right and enter the body class right-col.
Layout with left and right column
For the layout with a left and right column, select the page template fe_page_mate_leftright and enter the body class left-right-col.