Additionally, your role in Drupal may not have access to this tool. Contact your site administrator for additional information.
Click Menu in the Administrator toolbar.
Click Custom Settings in the Menu bar.
Click Manage Content Types.
Click edit in the Operations column next to the content type you want to edit.
Click the Panelizer tab.
Click Full Page Override in the upper right-hand corner.
Note: the Full Page Override panel controls the display of a page’s content when the viewer is on that page. Other panels will control the display of a page’s content when it is referenced in other ways across the site (e.g. in an automated list, an RSS feed, featured on the homepage, etc.)
Click Layout in the upper right-hand corner.
Select Radix in the Category drop-down menu.
Radix layouts are tested against all the major web browsers and include responsive design.
Click the layout you wish to apply.
Click Continue. You will see a preview of the new layout with the display panes assigned to the regions associated with the new layout.
Click Save. You will see the new layout with display panes in one or more regions. You will also be in the Content tab instead of the Layout tab.