To add a leader line in OpenPlant Isometrics Manager.
During Isometrics drawing generation process through both OpenPlant Modeler/AutoPlant Modeler, dimensions are placed on top of line, which has been set be default by OpenPlant Isometrics Manager. To facilitate Leader line for dimensions below steps are required.
http://communities.bentley.com/products/plant/design___engineering/w/plant_design_and_engineering__wiki/12639.modifying-dimension-styles
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