Steem has many more CLAs than are listed in the docs:
Would you clarify what these are for Russ?
NOSHM -- disables something. what is SHM? Simple harmonic motion!
HELP -- seems to do nothing
H -- don't know. Alternative to HELP?
QUITQUICKLY -- something to do with saving the emu state on exit?
DONTLIMITSPEED -- haven't tried it incase it melts my graphics card
ACCURATEFDC -- something which slows FDC
SCREENSHOTALWAYSADDNUM -- screenshot files carry numbers
PSGCAPTURE -- no idea
CROSSMOUSE -- continue to show the windows cursor after mouse capture
GDIFSBORDER -- does something with gdi for full screen display. Disables exclusive mode, causing DD errors.
FONT= -- for the scrolly message I presume.
DIVUTIME= -- Hmm, perhaps sets how tight the timers run for development/testing.
DIVSTIME= -- same again.
PABUFSIZE= --buffer size for PA
RTBUFSIZE -- buffer size for RT
RTBUFNUM -- number of buffers for RT
CUTS= -- specifies a shortcurts file?