Changing the Page Design
Overriding the default space Page Design.
Any new page that is created in a space automatically uses that space's default page design. You can override this at any time, and apply a different layout to the content of the page.
Open the Theme Press Designer and expand the Page Design accordion from the Page Designer Tab.
Click the Override Design button.
Select the radio button that corresponds to the appropriate page design.
Wait for the page to refresh.