Changing your Page layout
You can change your page to any of the available layouts by selecting it from the Page layouts tab that is visible when you open your homepage section.
If your site is using only one layout, you change it by going to your homepage and choosing the layout you want.
Do not change the layout on each section of your site. That will create extra work if you ever want to change it.
It is not necessary to set an Inheritable page layout. Subsections (child sections) will automatically inherit the layout used by its parent section.
If this was your site, you would go to the section named Wellness Center to change the layout. All of the sections under Wellness Center will switch to the same layout.
If you are switching from Left Navigation to Top Navigation with right sidebar, you must change the name of your sidebar section from left_sidebar to right_sidebar.