...and PTC doesn't either...
Since Verify regens each instance, you'd like to think that it could populate the mass too.
Time for an Idea, perhaps?
Steps to get this to work...
> Add your material information
> Add post regen relations for Mass and Volume (other posts on this)
> Set configuration option "mass_property_calculate always" (only set this when working with FT's or suffer the regeneration delay)
> In FT dialog - show Mass Properties
Mass properties will be calculated for all instances...
> Add materials for each instance (so one instance is brass, one steel, one aluminum for example)
> Add the material to a column in the FT
> Use drop-down to change the materials
> Use above procedure to regenerate and calculate for each instance through verify.