try this - it was written for an earlier iteration of MS flight sim - but it still applies
MS FLIGHT SIMULATOR 2002 GROUND SCHOOL : Free Download, Borrow, and Streaming : Internet Archive
there are other available articles listed in the description of this video and mentioned within the video itself
(1) Flight Simulator 2020 5 FREE Awesome Companions and Add Ons featuring the return of Meigs Field! - YouTube