Hi Sandip, Please follow the below wiki link: http://communities.bentley.com/products/plant/design___engineering/w/plant_design_and_engineering__wiki/17498.customize-pipeline-annotation-to-include-service-insulation-properties You need to create a property PIPELINE_PLANT_AREA and Property custom attribute on it as shown below in the picture. Now update the expression on the TEXT property: Hope this helps! Regards, Harpreet
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