Autodesk InfraWorks

[#1]

I have centerline data for the north bound lanes of a highway. If I set the number of lanes forward to 4 and back to 0, then the road is no longer centered on the data. If I set the number forward and back to 2, then I have a solid line for the marking down the center of the road. Any way to get the center marking line to be dashed instead of solid?

http://screencast.com/t/WO8HodEIvn6