Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See page_maxonapi_getting_started_foundations_cinema_parameters.
Parameter: Link Size
MDATA_SCULPTBRUSH_SETTINGS_RADIUS_LINK
Parameter: Keep Visual Size
MDATA_SCULPTBRUSH_SETTINGS_USEZOOMSCALE
Parameter: Link Strength
MDATA_SCULPTBRUSH_SETTINGS_STRENGTH_LINK
Parameter: Backface
MDATA_SCULPTBRUSH_SETTINGS_BACKFACE
Parameter: Link Stencil
MDATA_SCULPTBRUSH_STENCIL_LINK
Parameter: Preview Mode
MDATA_SCULPTBRUSH_SETTINGS_PREVIEWMODE
Parameter: Size
MDATA_SCULPTBRUSH_SETTINGS_RADIUS
Parameter: fx
MDATA_SCULPTBRUSH_SETTINGS_RADIUS_MOD
Parameter: Strength
MDATA_SCULPTBRUSH_SETTINGS_STRENGTH
Parameter: fx
MDATA_SCULPTBRUSH_SETTINGS_STRENGTH_MOD
Parameter: Falloff
MDATA_SCULPTBRUSH_FALLOFF_SPLINE
Parameter: \u27F3
MDATA_SCULPTBRUSH_FALLOFF_RESET
Parameter: Steady Stroke
MDATA_SCULPTBRUSH_SETTINGS_STEADYSTROKE
Parameter: Length
MDATA_SCULPTBRUSH_SETTINGS_STEADYSTROKE_VALUE
Parameter: Spacing
MDATA_SCULPTBRUSH_SETTINGS_STAMPSPACING
Parameter: Percent
MDATA_SCULPTBRUSH_SETTINGS_STAMPSPACING_VALUE
Parameter: Edge Detect
MDATA_SCULPTBRUSH_SETTINGS_EDGE
Parameter: Angle
MDATA_SCULPTBRUSH_SETTINGS_EDGE_ANGLE
Parameter: Draw Mode
MDATA_SCULPTBRUSH_SETTINGS_DRAWMODE
Parameter: Fill Symmetry
MDATA_SCULPTBRUSH_SETTINGS_DRAWMODE_FILL_SYMMETRY
Parameter: Fill Backfaces
MDATA_SCULPTBRUSH_SETTINGS_FILL_BACKFACES
Parameter: Direction
MDATA_SCULPTBRUSH_SETTINGS_DRAWDIR
Parameter: Load
MDATA_SCULPTBRUSH_STAMP_LOADPRESET
Parameter: Save
MDATA_SCULPTBRUSH_STAMP_ADDPRESET
Parameter: Clear
MDATA_SCULPTBRUSH_STAMP_RESET
Parameter: Stamp
MDATA_SCULPTBRUSH_STAMP
Parameter: Image
MDATA_SCULPTBRUSH_STAMP_TEXTUREFILENAME
Parameter: Material
MDATA_SCULPTBRUSH_STAMP_MATERIAL_LINK
Parameter: Rotation
MDATA_SCULPTBRUSH_STAMP_ROTATION_VALUE
Parameter: fx
MDATA_SCULPTBRUSH_STAMP_ROTATION_VALUE_MOD
Parameter: Flip Symmetry
MDATA_SCULPTBRUSH_STAMP_SYMMETRICAL
Parameter: Flip X
MDATA_SCULPTBRUSH_STAMP_FLIP_X
Parameter: Flip Y
MDATA_SCULPTBRUSH_STAMP_FLIP_Y
Parameter: Gray Value
MDATA_SCULPTBRUSH_STAMP_MIDVALUE
Parameter: Follow
MDATA_SCULPTBRUSH_STAMP_FOLLOW
Parameter: Falloff
MDATA_SCULPTBRUSH_STAMP_USEFALLOFF
Parameter: Alpha Channel
MDATA_SCULPTBRUSH_STAMP_USEALPHA
Parameter: Show Depth
MDATA_SCULPTBRUSH_STAMP_SHOWDEPTH
Parameter: Bilinear
MDATA_SCULPTBRUSH_STAMP_INTERPOLATE
Parameter: Enclose
MDATA_SCULPTBRUSH_STAMP_ENCLOSE
Parameter: Load
MDATA_SCULPTBRUSH_STENCIL_LOADPRESET
Parameter: Save
MDATA_SCULPTBRUSH_STENCIL_ADDPRESET
Parameter: Clear
MDATA_SCULPTBRUSH_STENCIL_RESET
Parameter: Stencil
MDATA_SCULPTBRUSH_STENCIL
Parameter: Image
MDATA_SCULPTBRUSH_STENCIL_FILENAME
Parameter: Material
MDATA_SCULPTBRUSH_STENCIL_MATERIAL_LINK
Parameter: Visible
MDATA_SCULPTBRUSH_STENCIL_VISIBLE
Parameter: Hide During Stroke
MDATA_SCULPTBRUSH_STENCIL_HIDEONSTROKE
Parameter: Transparency
MDATA_SCULPTBRUSH_STENCIL_TRANSPARENCY
Parameter: Angle
MDATA_SCULPTBRUSH_STENCIL_ANGLE
Parameter: Scale
MDATA_SCULPTBRUSH_STENCIL_SCALE
Parameter: Translate
MDATA_SCULPTBRUSH_STENCIL_TRANSLATE
Parameter: Tile X
MDATA_SCULPTBRUSH_STENCIL_TILEX
Parameter: Tile Y
MDATA_SCULPTBRUSH_STENCIL_TILEY
Parameter: Flip X
MDATA_SCULPTBRUSH_STENCIL_FLIP_X
Parameter: Flip Y
MDATA_SCULPTBRUSH_STENCIL_FLIP_Y
Parameter: Gray Value
MDATA_SCULPTBRUSH_STENCIL_MIDVALUE
Parameter: Enable Modifiers
MDATA_SCULPTBRUSH_MODIFIER_ENABLE