Copying, cutting and pasting with your mouse is pretty straightforward, but using keyboard shortcuts can save you a lot of time.
Select your items to copy or cut as above. To select all items on a page or folder, you can use the CTRL+A or Command + A shortcut: hold down the CTRL button (on Windows) or Command key (on Mac) then hit the A key.
Then hit these keys together to copy, cut, and paste them:
Windows: Hold down the CTRL key then click
C to copy
X to cut
V to paste
Mac: Hold down the Command key. Then, as with Windows, click: