PRIMER 22.1
Assign Mass by Element Mass Part
Assign Mass by Element Mass Part
In part mode, will show the mass added per part by *ELEMENT_MASS_PART(ADD) definitions.
You may also use the mass properties contour tool to show (*)Struct Mass, (*)NS Mass or (*)Final Mass - that is the sum of structural and non-structural mass for all parts with *ELEMENT_MASS_PART.