Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Simulation
CLOTH_SIMULATION_PRIORITYParameter: Enable
CLOTH_USEParameter: Auto
CLOTH_AUTOTIMEParameter: Start
CLOTH_STARTParameter: Stop
CLOTH_STOPParameter: Iterations
CLOTH_ITERATIONSParameter: Stiffness
CLOTH_STRUCT_FParameter: Stiffness Map
CLOTH_STRUCT_F_MAPParameter: Flexion
CLOTH_FLEXION_FParameter: Flexion Map
CLOTH_FLEXION_F_MAPParameter: Rubber
CLOTH_RUBBER_FParameter: Rubber Map
CLOTH_RUBBER_F_MAPParameter: Bounce
CLOTH_BOUNCEParameter: Bounce Map
CLOTH_BOUNCE_MAPParameter: Friction
CLOTH_STICKIParameter: Friction Map
CLOTH_STICKI_MAPParameter: Mass
CLOTH_MASSParameter: Mass Map
CLOTH_MASS_MAPParameter: Size
CLOTH_SHRINK_FParameter: Size Map
CLOTH_SHRINK_F_MAPParameter: Tear
CLOTH_TEAR_FParameter: Tear Map
CLOTH_TEAR_F_MAPParameter: Use Tear
CLOTH_TEARParameter: Gravity
CLOTH_GRAVITYParameter: Drag
CLOTH_DRAGParameter: Wind Direction
CLOTH_WIND_DIRParameter: Wind Strength
CLOTH_WIND_FParameter: Wind Turbulence Strength
CLOTH_WIND_TURB_FParameter: Wind Turbulence Speed
CLOTH_WIND_TURB_SParameter: Wind Drag
CLOTH_WIND_DRAGParameter: Wind Impact
CLOTH_WIND_IMPACTParameter: Wind Lift
CLOTH_WIND_LIFTParameter: Air Resistance
CLOTH_WIND_SPEEDParameter: Self Repulsion
CLOTH_SREPParameter: Distance
CLOTH_SREP_DParameter: Force
CLOTH_SREP_FParameter: Damping
CLOTH_SREP_BParameter: Dress Mode
CLOTH_DRESSMODEParameter: Relax
CLOTH_DO_RELAXINGParameter: Steps
CLOTH_RELAX_STEPSParameter: Dress-O-matic
CLOTH_DO_DRESSINGParameter: Steps
CLOTH_DRESS_STEPSParameter: Width
CLOTH_SEAMS_DISTParameter: Set
CLOTH_SETINITParameter: Show
CLOTH_SHOWINITParameter: Set
CLOTH_SETDINITParameter: Show
CLOTH_SHOWDINITParameter: Set
CLOTH_SETMASSParameter: Clear
CLOTH_CLEARMASSParameter: Show
CLOTH_SHOWMASSParameter: Draw
CLOTH_DRAWMASSParameter: Set
CLOTH_SETSEAMSParameter: Clear
CLOTH_CLEARSEAMParameter: Show
CLOTH_SHOWSEAMSParameter: Cache Mode
CLOTH_BAKEParameter: Start
CLOTH_CACHE_STARTParameter: Calculate Cache
CLOTH_DO_CALCULATEParameter: Empty Cache
CLOTH_DELCACHEParameter: Update Frame
CLOTH_CACHE_FRAMEParameter: Load...
CLOTH_CACHE_LOADParameter: Save...
CLOTH_CACHE_SAVEParameter: Sub Sampling
CLOTH_SUBDIVParameter: Self Collision
CLOTH_SELFParameter: Global Intersection Analysis
CLOTH_GIAParameter: Point Collision
CLOTH_POINTSParameter: Point EPS
CLOTH_P_EPSParameter: Edge Collision
CLOTH_EDGESParameter: Edge EPS
CLOTH_K_EPSParameter: Polygon Collision
CLOTH_POLYSParameter: Poly EPS
CLOTH_V_EPSParameter: Limit to:
CLOTH_INCLUDE