Hi Larry,
What about using the Edit Feature Point Command? You can insert points along your break while controlling the slope (have to hit the "More" button on the right to activate this option).
Hope this helps. Take care,
Alan Gilbert
Bentley Civil
Do you have Geopak Site or Power Civil? If so you can profile the curb returns without the need to create alignments by using the Element profile tool. Once you apply the profile to the element you can generate a 3D line from it and use it as a breakline.
Neil Wilson (aka Neilw)
Power Civil v8i 08.11.07.245
AutoCAD Civil 3D 2018