Click Create
Route Point 
(Routing Tools toolbar) or Routing,
Routing Tools, Create
Route Point.
Under Selections
in the PropertyManager, for Select a
sketch point 
:
A Route Point is a point in a fitting (flange, elbow, electrical connector, and so on) that is used to position the fitting at an intersection or endpoint in the route sketch.
In a fitting with multiple ports (such as a tee or cross), you must create a sketch point at the intersection of the axes of the fitting before adding a Route Point.
See also Connection Point.
To create a Route Point:
Click Create
Route Point (Routing Tools toolbar) or Routing,
Routing Tools, Create
Route Point.
Under Selections
in the PropertyManager, for Select a
sketch point :
For rigid pipe and tube fittings, select a sketch point in the graphics area.
For flexible tubes fittings or electrical cable connectors, select a sketch point and a planar face in the graphics area.
In a fitting with multiple ports, select the sketch point at the intersection of the axes.
In a flange, select a point that is concentric with the cylindrical faces of the part. If the flange mates with another flange, select a point on the mating face.
Click 
.