Have you ever seen a list that shows all of the commands that can be used transparently in one place?  Look no further because here it is in all it's glory!  Remember that you must include the preceding apostrophe before the command name for these to work while another command is active.

'ABOUT
'APERTURE
'ATTDISP
'BASE
'BLIPMODE
'CAL
'COLOR
'DDGRIPS
'DDOSNAP
'OSNAP
'DDPTYPE
'DDRMODES
'DDSELECT
'DDUNITS
'DELAY
'DIST
'DRAGMODE
'ELEV
'FILL
'FILTER
'GRAPHSCR
'GRID
'HELP
'ID
'ISOPLANE
'LAYER
'-LAYER
'LIMITS
'LINETYPE
'-LINETYPE
'LTSCALE
'MATCHPROP
'ORTHO
'PAN
'QTEXT
'REDRAW
'REDRAWALL
'REGENAUTO
'RESUME
'SCRIPT
'SETVAR
'SNAP
'SPELL
'STATUS
'STYLE
'TEXTSCR
'TIME
'TREESTAT
'UNITS
'VIEW
'ZOOM