Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Enable Remapping
FIELD_REMAP_ENABLEParameter: Mirror Graph
FIELD_REMAP_MIRRORParameter: Strength
FIELD_STRENGTHParameter: Invert
FIELD_INVERTParameter: Inner Offset
FIELD_INNER_OFFSETParameter: Min
FIELD_MINParameter: Clamp Min
FIELD_CLAMP_MINParameter: Max
FIELD_MAXParameter: Clamp Max
FIELD_CLAMP_MAXParameter: Multiplier
FIELD_MULTIPLIERParameter: Contour Mode
FIELD_CONTOUR_MODEParameter: Curve
FIELD_CONTOUR_CURVEParameter: Steps
FIELD_CONTOUR_STEPSParameter: Spline
FIELD_CONTOUR_SPLINEParameter: Spline Animation Speed
FIELD_CONTOUR_ANIMATION_SPEEDParameter: Spline Offset
FIELD_CONTOUR_SPLINE_OFFSETParameter: Spline Range
FIELD_CONTOUR_SPLINE_RANGEParameter: Color Mode
FIELD_COLOR_MODEParameter: Color
FIELD_COLORParameter: Gradient
FIELD_GRADIENTParameter: Length
FIELD_DIRECTIONMODEParameter: Scale
FIELD_DIRECTIONSCALEParameter: Invert Direction
FIELD_DIRECTIONINVERTParameter: Strength
FIELD_ROTATIONMODEParameter: Scale
FIELD_ROTATIONSCALEParameter: Invert Rotations
FIELD_ROTATIONINVERT