Function Keys F5 in Microsoft Word

In Microsoft Word, F5 opens the Go To dialogue, where you can jump to a particular page, section, bookmark, etc, in the document. Just type page number and press Enter. Or press Shift + Tab to choose a different Go To item, such as bookmark, and Tab back to a list of options to choose where to go. Press Enter on the one you want. Press Escape to close the Go To dialogue.
Shift + F5 moves to where the last revision was made to the document.
Control + Shift + F5 opens the Bookmark dialogue box, where you can add a bookmark at the current cursor position in the document.
Then you can use F5 to move to a particular bookmark!