To change the format of an existing layout on a page in My Folder, do the following:
Select My Folder in the navigation area.
Select the page you want to change. Then click the Edit icon
in the top
right corner of the page.Select a layout from the Layout drop-down list in the corresponding Page/Folder Customizer section. Then click Change Layout.
Changing the layout will rearrange the portlets depending on the new layout.
To return to normal mode, click the View icon
in the top
right corner of the page.