Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Random Mode
MGRANDOMEFFECTOR_MODE
Parameter: Synchronized
MGRANDOMEFFECTOR_SYNC
Parameter: Indexed
MGRANDOMEFFECTOR_INDEXED
Parameter: Seed
MGRANDOMEFFECTOR_SEED
Parameter: Space
MGRANDOMEFFECTOR_SPACE
Parameter: Animation Speed
MGRANDOMEFFECTOR_SPEED
Parameter: Scale
MGRANDOMEFFECTOR_SCALE