Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Strength
FP_FLOCK_OBJECT_GLOBAL_STRENGTHParameter: Maximum Speed
FP_FLOCK_OBJECT_MAXIMUM_SPEEDParameter: Cohesion Strength
FP_FLOCK_OBJECT_STRENGTH_GROUPINGParameter: Cohesion Radius
FP_FLOCK_OBJECT_RADIUS_GROUPINGParameter: Separation Strength
FP_FLOCK_OBJECT_STRENGTH_SEPARATIONParameter: Separation Radius
FP_FLOCK_OBJECT_RADIUS_SEPARATIONParameter: Velocity Alignment Strength
FP_FLOCK_OBJECT_STRENGTH_ALIGNMENTParameter: Velocity Alignment Radius
FP_FLOCK_OBJECT_RADIUS_ALIGNMENTParameter: Excluded Group(s)
FP_FLOCK_OBJECT_EXCLUDED_GROUPParameter: Strength
FP_FLOCK_OBJECT_RANDOM_STRENGTHParameter: Scale
FP_FLOCK_OBJECT_RANDOM_SCALEParameter: Frequency
FP_FLOCK_OBJECT_RANDOM_FREQUENCYParameter: View Direction
FP_FLOCK_OBJECT_FIELD_OF_VIEW_VIEWDIRECTIONParameter: FOV
FP_FLOCK_OBJECT_FIELD_OF_VIEWParameter: FOV Falloff
FP_FLOCK_OBJECT_FIELD_OF_VIEW_FALLOFF