When trying to produce the output document from a mail merge, when the selected output is "Edit Individual documents", it is impossible to print only part of the result. Even after saving and then re-opening this n-page long document, when you try to print it sends the entire document to the printer. Options Print current page or Print Range do not seem to work.
See this related post, which I put in the Office 365 forum, before I saw there was a Word only forum. I am using office 365
@mwcorg_2342If I understand it correctly, somehow mail merge produces a document with a lot of sections in one single page (although it seems the document has just a lot of pages). Therefore, you can try to define the range as follows: s1, s3, s5-s12. Just put a 's' in front of each number in the range and it works.
I have no clue what the concept is behind these kind of sections, so it would be nice if someone can explain that :).