To Edit Pipe Networks Using the Storm Sewers Extension
Click Analyze tabDesign panelEdit In Storm SewersFind.
In the Export To Storm Sewers dialog box, select the pipe networks to export, and click OK.
Note: You must select one or more entire pipe networks. You cannot select individual parts, or a series of connected parts within a pipe network.
Enter a name and select a location for the .stm file, and click Save.
The .stm file is created, and the Storm Sewers Extension launches. The exported pipe network data is displayed in Storm Sewers Extension. For more specific information about using the Storm Sewers Extension to edit pipe networks, see the Storm Sewers Extension Help.