I'm trying to design a junction without using the Wizard. I can generate all of the necessary baselines/regions and target the Curb Return assemblies to a Feature Line generated along the carriageway edge of the Primary Road. What I can't work out is how to vertically attach the Curb Return kerbline profiles to the Primary Road corridor such that if and when I redesign the Primary road, the Curb Return kerblines dynamically update their level too.