I am attempting to show the mainline corridor on a sideroad profile so that I am tying into it correctly. My mainline corridor is referenced in. What exactly are the steps to show this on the sideroad profile? When I attempt to select the mainline corridor or any of the features within it I get a notice "Element is in a read-only reference" and it will not allow me to select it. I know that it is possible. After multiple attempts and frustration I just start clicking and sometimes it works but I have no idea what I did.
Here are two options:
Profile Intersection point https://www.youtube.com/watch?v=v-aQFSEr_bk
3D Cut https://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki/41757/video-create-3d-cut-in-profile
Note that the graphics shown in the 3D cut cannot be snapped to for new design elements.