Hey Ron,
Check this macro out.  It shows how to get and set the FRO, RRO, and SSO.  FRO and RRO return 0-250 and 0-100.  SSO returns 0.5-1.5
function m309()
local inst = mc.mcGetInstance()
local FRO = mc.mcCntlGetFRO(inst)--Returns:  0 - 250
local RRO = mc.mcCntlGetRRO(inst)--Returns:  0 - 100
local SSO = mc.mcSpindleGetOverride(inst)--Returns:  0.5 - 1.5
mc.mcCntlSetFRO(inst, 135)
mc.mcCntlSetRRO(inst, 75)
mc.mcSpindleSetOverride(inst, 1.2)
mc.mcCntlSetFRO(inst, 100)
mc.mcCntlSetRRO(inst, 100)
mc.mcSpindleSetOverride(inst, 1.0)
end --m309()
if (mc.mcInEditor() == 1) then
     m309 ()
end