New content appears at the top of the left column on your tab. You can move it to another location and change the tab layout.
To move content
Drag the content by its title bar and drop it above or below other content. A blue bar shows where the content will move when you drop it.
Tip: You can't move the Personal Assistant if it's displayed on your tab, but you can remove it.
To change the tab layout
If you select a layout with more columns than your current layout, one or more columns will be empty. You can drag and drop content into the empty columns.
Tip: If your layout choice creates a tab that requires horizontal scrolling, it might help to maximize the browser window. It might also help to reduce the banner and Web search box through Change Appearance > Searchbox Size. If these don't work, then you might want to try a different column layout.