The Navigation pane can be used to quickly move or delete sections in a document.
The Navigation can be displayed by ticking Navigation Pane on the View ribbon.
The Navigation Pane is displayed on the left hand side of the screen and will show all the heading styles used in the document.
To move the position of a section, click and drag the heading to where you want it to be displayed, you will see a blue line in the Navigation Pane – when you release the mouse the section will be positioned above the blue line (all text within the selected section will also be moved).
To delete a section (and all text within in), right click the section and choose Delete from the shortcut menu.