Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Start Cap
CAPSANDBEVELS_CAP_ENABLE_STARTParameter: End Cap
CAPSANDBEVELS_CAP_ENABLE_ENDParameter: Separate Bevel Controls
CAPSANDBEVELS_BEVEL_SEPARATEParameter: Bevel Shape
CAPSANDBEVELS_STARTBEVEL_TYPEParameter: Size
CAPSANDBEVELS_STARTBEVEL_OFFSETParameter: Extended Shape
CAPSANDBEVELS_STARTBEVEL_MODEParameter: Height
CAPSANDBEVELS_STARTBEVEL_HEIGHTParameter: Curve
CAPSANDBEVELS_STARTBEVEL_CURVEParameter: Shape Depth
CAPSANDBEVELS_STARTBEVEL_DEPTHParameter: Extended Shape
CAPSANDBEVELS_STARTBEVEL_ALONGNORMALSParameter: Use Absolute Value
CAPSANDBEVELS_STARTBEVEL_ABSOLUTEParameter: Max Shape Height
CAPSANDBEVELS_STARTBEVEL_ABSOLUTEDEPTHParameter: Segments
CAPSANDBEVELS_STARTBEVEL_SEGMENTSParameter: Load Preset...
CAPSANDBEVELS_STARTBEVEL_LOADPRESETParameter: Save Preset...
CAPSANDBEVELS_STARTBEVEL_SAVEPRESETParameter: Bevel Shape
CAPSANDBEVELS_ENDBEVEL_TYPEParameter: Size
CAPSANDBEVELS_ENDBEVEL_OFFSETParameter: Extended Shape
CAPSANDBEVELS_ENDBEVEL_MODEParameter: Height
CAPSANDBEVELS_ENDBEVEL_HEIGHTParameter: Curve
CAPSANDBEVELS_ENDBEVEL_CURVEParameter: Shape Depth
CAPSANDBEVELS_ENDBEVEL_DEPTHParameter: Extended Shape
CAPSANDBEVELS_ENDBEVEL_ALONGNORMALSParameter: Use Absolute Value
CAPSANDBEVELS_ENDBEVEL_ABSOLUTEParameter: Max Shape Height
CAPSANDBEVELS_ENDBEVEL_ABSOLUTEDEPTHParameter: Segments
CAPSANDBEVELS_ENDBEVEL_SEGMENTSParameter: Load Preset...
CAPSANDBEVELS_ENDBEVEL_LOADPRESETParameter: Save Preset...
CAPSANDBEVELS_ENDBEVEL_SAVEPRESETParameter: Bevel Outside
CAPSANDBEVELS_BEVEL_OUTSIDEParameter: Avoid Self Intersections
CAPSANDBEVELS_AVOIDINTERSECTIONParameter: Caps Type
CAPSANDBEVELS_CAP_TYPEParameter: Density
CAPSANDBEVELS_CAP_DELAUNAY_GRADParameter: Size
CAPSANDBEVELS_CAP_REGULAR_SIZEParameter: Quad Dominant
CAPSANDBEVELS_CAP_DELAUNAY_QUADParameter: Break Phong Rounding
CAPSANDBEVELS_PHONGBREAKROUNDING