Update 9 Version(10.09.00.74)
In OpenPlant Modeler CE, User is able to place the elbow through autofitting rule defined directly during modeling Piping.But User is not able to select exact type of Elbow which need to be placed.As shown in below small video.It gets placed directly.If other schedule Elbow need to placed then it need to be done Manually.In above small video Victaulic spec has been used for demonstrating the requirement. This wiki will help you to enable the grid selection during elbow placement such that required type of Elbow can be placed during piping modeling and no need of manually placing.
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