To turn on and off sidebar content you would do the following:
Go to the page you would like to edit. Make sure the is yellow or else the following Properties area will not render the sidebar information.
Click (just above the toolbar).
In the Show Sidebar select Yes or No depending on the look you are wanting to achieve.
Click
Go back to the Edit portion of your page. The Sidebar Content will now either be activated or deactivated,
depending on step 4's selection.
Make edits as needed to this area.
Please note: If the Sidebar is on this area will render last on a mobile divice due to responsive design. You may want to use a Layout Snippet instead to make page
edits to modify the reading order.