The setting of these check boxes determines whether the material for a MDS trunnion appears in the piping isometric material list under the FABRICATION MATERIALS (SHOP TRUE) or ERECTION MATERIALS (SHOP FALSE) headings of the MTO.

When the Isometric MTOC Flag is true on the Standard tab, all check boxes are ticked (true) by default, but the Administrator can untick boxes as required for the project.

When the Isometric MTOC Flag is false on the Standard tab, this setting overrides all the check box settings shown on this tab, and are treated as false, even if they are ticked.