It's not my deal that the MorphOS Team is not providing the docs. There is a 165 KB manual, explaining the hid.class in detail. Actually, if the manual would have been installed at the right place (as it is being done on the Classic Amiga), the context sensitive page would come up right on pressing the help key (F12/Menu?) inside the relevant window.
The manual is in this archive, just in case it isn't in MOSSYS:Locale/Help
Directory listing of /MorphOS/Locale/Help/deutsch/
---------- 0 0 0 178420 Jun 2 2010 [ 24172 00] Poseidon.guide
Directory listing of /MorphOS/Locale/Help/english/
---------- 0 0 0 167968 Jun 2 2010 [ 24294 00] Poseidon.guide
I think the MorphOS multiview/amigaguide.library implementation doesn't properly implement opening the correct context sensitive guide node however (it currently opens the document root). Itix?