+ # - \b DropSmallSolids - either removes small solids or merges them with neighboring ones. \n
+ # - \b DropSmallSolids.WidthFactorThreshold - defines maximum value of <em>2V/S</em> of a solid which is considered small, where \a V is volume and \a S is surface area of the solid. \n
+ # - \b DropSmallSolids.VolumeThreshold - defines maximum volume of a solid which is considered small. If the both tolerances are privided a solid is considered small if it meets the both criteria. \n
+ # - \b DropSmallSolids.MergeSolids - if "1", small solids are removed; if "0" small solids are merged to adjacent non-small solids or left untouched if cannot be merged. \n