I am using routings to auto-route a spline between two fittings.  This works well and creates the tube between the fittings well.  However as my design changes,  the location of these fittings can change.  The tubing does not change with the location of the fittings, it remains going to the original location of the fittings.  Could someone please help me so that this tubing will change along with my design.

Thanks