This article will explain how user can pass on EC Property value from Pipe Run to Instruments stacked up on each other.
Please Note: If you assign design pressure value to pipe run on step 2, then the value will only be passed on to the first bubble which is placed in step 3 above.
How to use the Notify Property Custom Attribute- http://communities.bentley.com/products/plant/design___engineering/w/plant_design_and_engineering__wiki/4494
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