Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Override Phong Tag
MDATA_PWS_OVERRIDE_PHONGParameter: Phong Angle
MDATA_PWS_ANGLE_THRESHOLDParameter: Use Edge Breaks
MDATA_PWS_USE_PHONGBREAKSParameter: Select All
PWS_BTN_SELECT_ALLParameter: Tag Name
PWS_TAG_LINKParameter: Auto Set Selection
PWS_TAG_AUTO_SET_SELParameter: Set Selection
PWS_TAG_SET_SELParameter: Add Selection
PWS_TAG_ADD_SELParameter: Subtract Selection
PWS_TAG_REM_SEL