Inserting breakpoints in vertical profile

Hello,

I'm trying to figure out how to insert breakpoints into the vertical profile of a line built by a civil cell.

I'm laying out the edge of lane for a sideroad intersection that tapers from a matchline on the sideroad to the mainline edge of pavement.  At two points along that edge of lane the front and back edges of a crosswalk intersect.

Following ADA requirements, the cross slope of that crosswalk cannot exceed 2%.  However, assuming many use cases will have cross slopes at or below +/-2%, I'd rather let the crosswalk slope follow the edge of lane profile initially.  If the cross slope exceeds +/-2%, I want to be able to go into the edge of lane profile and insert a custom slope between the crosswalk lines that can be locked in at the required 2% maximum.

So the goal is to insert two breakpoints in the edge of lane profile where the crosswalk lines intersect it *after* the civil cell has been placed.

Screenshot Legend:

• Edge-of-lane line:  blue highlight with arrows
• Sideroad match line: lies on end of corridor template (highlighted in pink)
• Crosswalk edge lines:  lighter brown lines on outer edges of crosswalk
• Mainline edge of pavement:  light blue horizontal line near top

Vertical profile for sideroad edge of lane line.  Blue points represent intersection at sideroad matchline at left and mainline edge of pavement at right: