CONNECT Edition 10.08.00.51 (Update 8)
The requirement is to add various grades of material in a lookup table. This wiki article explains how to create the same via OpenPlant Specification Generator.
See Also
http://communities.bentley.com/products/plant/design___engineering/w/plant_design_and_engineering__wiki/25346.error-an-internal-error-occurred-could-not-start-responsive-microstation-server
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.