For Conduits, on our 2D plans, we show a different linestyle for each size of pipe. In InRoads, we would enable centerline display using these different linestyles. This linestyle is a wide dashed line with solid edge lines. We cannot replicate that in the current software. This was easy in InRoads.
In the 2024 release of the Civil products, we now include the shape and size of each conduit in the Civil properties. A benefit of this is that it can be used to override the symbology of a conduit, by setting up a Display Rule. This is shown in the linked video. Display Rules don't let you override the level, but they do let you override the colour, weight and line style used.
Video