Materials Database Assignment

COSMOSWorks needs a Modulus of Elasticity value from its material
assignment to run properly. The standard SW materials database has
this value defined, however I have created an additional database (we
have some oddball materials) and it (value for EX) does not come up as
a field. In fact there are nine physical properties in the SW database
and only four in the newly created (user) database. Anyone have an
idea how to add the required field(s). Do I need to edit the
supporting XML file? Hardly seems like a desired method.