Assigning the exact mass (instead of density) to 3D parts in Catia

Hello everyone,

I have a question about how to specify the exact mass of a 3D part in CATIA 3DExperience. I read the post linked below about the same topic, but I'm still having trouble figuring out how to use BI Essentials to specify the mass of the part. In the BI Essentials, the drop-down menu does not include any option related to specifying the mass (see picture below).


Any suggestions and help are welcome. Thank you!