Changing Line Stock and Line Shape Parameters While Routing Pipelines
At the outset of routing a pipeline, the system uses default parameters from the current line stock of the pipeline being routed. These environment settings are modal; that is, they remain set for all further routing until you change them.
While routing a pipeline, you can reassign line stock, corner type, and line shape for subsequent segments using the 
Environment command on the Rigid Pipes group. You can reassign a line stock for segments that start from a new start point or after a fitting.
Environment command on the Rigid Pipes group. You can reassign a line stock for segments that start from a new start point or after a fitting.