I have created a sewer pipe network in C3D for a fairly large development project of 270 properties. Each property has it's own connection to the main sewer line. To check for clashes with the drainage network and other utilities, I have modelled those property connections in C3D, but in a separate network so I don't get the main sewer lines divided into segments where they meet each other. Anyway, I was wondering if there's a way to display those connections on the long sections as per our standards. This is a T shape marker at the upstream IL of the property connection pipe. That marker should extend up to the top of the main pipe. Please see image attached for clarification. So far I have only managed to show the downstream IL as a crossing pipe, but the bosses here aren't that happy with that. I thought about creating points at the beginning of each property connection pipe, then assign the elevation of the upstream IL and finally projecting them on the profile with the right style. Unfortunately there are a few cons to these method. Firstly, it's not fully dynamic If you move the property connection pipe or change the IL, you have to do the same thing with each point. Secondly, the T shape marker will not extend up to the top of the main pipe, so that will have to be drawn manually. Does anybody have any idea how to do this? Apparently it can be done in 12D, so I was hoping C3D would be able too.