Word 2016 doesn't have a menu (unless you call Home, Insert, Page Layout, etc., a menu), and you can't customize what's not there. Word does still have context-sensitive right-click menus. However, unlike in previous versions of Word, the user interface no longer provides a way to customize them.
If you have any questions or suggestions, please feel free to ask OfficeToolTips team.
Microsoft Word continuously improves and polishes checks for grammar rules and orthography.
There are many additional add-ons, utilities, and applications for checking style, spelling, etc., that can
improve your writing, but Word itself provides enough hints for writing correct texts. However, for
technical writers it becomes annoying at times. If you choose to use the grammar checker rather than turn it
off completely, you can tell it which grammar items you want to check and which you don't.