Instruments and Controls

Is there any way to get detailed info on certain instruments, switches, controls, etc. for specific aircraft in FS2002? For example, I love using the checklists for various aircraft, but would like to know the details about using the "Inertial Separator", "Emergency Power" lever, the "ITT", "Torque", gauges in the C-208 just to name a few. There are so many new instruments in the various aircraft and the checklists tell you when and the correct order to use them, but what about WHY and HOW to use them? The help menu didn't seem to have much except general how to fly info. The addon aircraft usually have this info don't they? Thanks. :-hmmm