Schematic objects have a Releaseto3dstatus attribute which should be set in the diagram authoring system. For example, AVEVA Diagrams provides a dialogue to set this attribute. If the AVEVA Diagrams user then tries to modify a released object, they are prompted to confirm they do want to change it. If they do change it, the release status is unset P&ID Manager provides options to manage the release status of imported schematic data.

The syntax for the Releaseto3dstatus attribute in the Main Table column setup is RESTAT. When set it has the value 1. It can be set from the command line with RESTAT 1.