Make wall appear when inside 2:1 fill slope

I am trying to make a wall appear when the 2:1 slope cannot solve. Do I need a separate end condition set to the wall? I don't understand how it works.


The wall should be off at all times until the cursor reaches below 3' of the 2:1 slope line

This is based on this exercise here: https://learn.bentley.com/app/VideoPlayer/LinkToIndividualCourse?LearningPathID=113448&CourseId=122809&MediaID=5015035
I
n the exercise he doesn't explain how his fill slopes and wall are setup.

Parents Reply Children
No Data