Creo ModelCHECK > checks > MU_MASS_RECOMPUTE
  
MU_MASS_RECOMPUTE
<Y/N>
Specifies whether to recompute mass property for the model during a model update.
Y—This is the default. Computes mass property during the model update that automatically occurs through ModelCheck.
N—Do not compute mass property during the model update that automatically occurs through ModelCheck.