c4d_base/description/fieldremapper.hParameters are accessed with cinema::C4DAtom::GetParameter() and cinema::C4DAtom::SetParameter(). See Parameters.
Parameter: Enable Remapping
FIELD_REMAP_ENABLEParameter: Mirror Graph
FIELD_REMAP_MIRRORParameter: 'This parameter does not have a label'
FIELD_PREVIEWParameter: 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_MODEFIELD_CONTOUR_MODE_NONEFIELD_CONTOUR_MODE_QUADFIELD_CONTOUR_MODE_STEPFIELD_CONTOUR_MODE_QUANTIZEFIELD_CONTOUR_MODE_CURVEParameter: 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_MODEFIELD_COLOR_MODE_OFFFIELD_COLOR_MODE_COLORFIELD_COLOR_MODE_GRADIENTParameter: Color
FIELD_COLORParameter: Gradient
FIELD_GRADIENTParameter: Length
FIELD_DIRECTIONMODEFIELD_DIRECTIONMODE_OFFFIELD_DIRECTIONMODE_NORMALIZEFIELD_DIRECTIONMODE_ATTENUATEFIELD_DIRECTIONMODE_INVERSESQUAREParameter: Scale
FIELD_DIRECTIONSCALEParameter: Invert Direction
FIELD_DIRECTIONINVERTParameter: Strength
FIELD_ROTATIONMODEFIELD_ROTATIONMODE_OFFFIELD_ROTATIONMODE_NORMALIZEFIELD_ROTATIONMODE_REMAPFIELD_ROTATIONMODE_ATTENUATEFIELD_ROTATIONMODE_INVERSESQUAREParameter: Scale
FIELD_ROTATIONSCALEParameter: Invert Rotations
FIELD_ROTATIONINVERT