Mass in the Title Block

My company places the mass of the part or assembly in the Title blocks of our drawings. Currently Inventor doesn't give an option in the Title Block creator to add this field from the Iproperties (desrciption, title, material etc...). The work around is add a prompted field to do this, but this is rather cumbersome becasue you have to remember to get the mass from the assembly or part file to fill in the information manually. Is there a way automate this like the other fields?