To Create a Pressure Network
Lay out a pressure network along a path. You can optionally choose to create the pressure network so that it conforms to the topography of a surface.
About Using the Compass to Control Part Angles During Pipe Run Creation
The compass is a guide which you can use during pressure network layout to insert the next pressure network part. The compass appears as a circle and tick marks after the first pipe segment is drawn. The tick marks show the angles that can be established with the available bends or the allowable deflection angles.