Editing your Page Layout
When you are creating a page you can change the layout by choosing the numbers of columns, click the Edit Layout tab to alter the number of columns shown on a page.
These columns can then be used to arrange content by dragging and dropping blocks into them. Note: The default setting for a page is 3 columns of equal width.
Click the selection button above the column option you want for the page.
And then click the Save button at the bottom of the screen to make the change.