Organize your notebooks

Show navigation panes

Select View > Navigation Panes > Show All, so you can see all of your notebooks, sections, and pages

Move a page from one section to another

Drag the title of the page to the section you want.

Rearrange the order of pages or sections

Drag the title of the page or section where you want it in the list.

Copy a page to another section or notebook

Right-click the page and select Copy.
Right-click a blank page in another section or notebook and select Paste.

Move or copy a section

Right-click the section title and select Move/Copy.
Select a notebook and then select Move or Copy.

Source: Microsoft