If all you need is 'helper' text that gets hidden when the document is printed, see 'Use a date test to provide pre-printing instructions' and 'Show or hide instructions & graphics at print time' in my
Microsoft Word Date Calculation Tutorial, in the 'Sticky' thread at the top of the Word Forum:
https://www.msofficeforums.com/word/...-tutorial.html
No macros required. Do read the document's introductory material.