Adding a node (structure) to an existing pipe network (conduits).

Hi!

I am modelling a sewage pipe system where I cannot place a node / lateral connection on an existing conduit.

The placement of my pipe system is obtained using the "Extract utilities from graphics"-command whereas the end and start point of the graphic chosen are converted to nodes (structures) and the lines inbetween are converted to conduits. However, I need to place nodes on these conduits between the start and end node I am not able to do it. The solution of using the "place an lateral connection"-command does not work either.

How can I solve this?

Best Regards,
Daniel Berglund..