Many of the tools in the Civil/Site Tools toolbar are not working. Most of the tools throw "Command not defined for this application" error. For instance the Place Composite Curve tool in the toolbox. I am using MicroStation CONNECT Update 12 - Version 10.12.00.40Is this a known bug?
The "Set Element Elevation" tool from CivTools was requested as an Enhancement to be included in MicroStation CONNECT (Update 12). Not sure why it is not operational on your system but you might like to upgrade to Update 13. I have not heard of the "Set Elevation by Crossing" tool other than within CivTools but it may be included as a part of this enhancement operation.
https://communities.bentley.com/products/microstation/b/microstation_blog/posts/new-in-microstation-connect-edition-update-12---set-element-elevation-tool
RegardsAndrew BellTechnical SupportBentley Systems
But in in another Microstation called Microstation Powerdraft this tool is not available.