Add, modify and delete user-defined sections
A user defined section can take the form of a custom, or a compound section, a compound section being one that comprises of 2 chords or more connected by battens or lattice or welded.
Add a user-defined custom or compound section to the material database
Modify a user-defined custom or compound section in the material database
Delete a user-defined custom or compound section from the database
Note: Only user-defined sections, marked with *,
can be deleted.