8.11.11.87/96 (SS6) & above
In OpenPlant Modeler, requirement is to set pipeline symbology based on defined system along with valve tag.
In OpenPlant Modeler, symbology settings can be defined based on system. Also, using named expression Valve Tag can be set along with symbology settings as well. Below wiki article explain the procedure to achieve this requirement.
If above problem still persists, then please create a Service Request and contact the Bentley Product Advantage group. Please include a list of all relevant details to get in depth analysis for a solution or workaround.