We added a pass thru when hovering so it ignores labels and other geometry, we like this revision. However on the actual selection we can only limit what is acceptable and it currently requires care to actually pick the pipe (or ProfilePart). Let us know if this is a problem, we may be able to find a workaround.
We are currently breaking down the pipe range as follows:
0%-14.9% Starting Invert ... 15.0%-49.9% Starting Slope ... 50.0%-85.0% Ending Slope ... 85.1%-100% Ending Invert
So the prompting varies depending on your position along the pipe.
Right now when you hover over a ProfilePart the tooltop shows on the ProfilePart but the graphic markers show on the actual pipe, any thoughts on that? Clicking the ProfilePart gets you the right prompt, and makes the changes, but do the graphics need to be up on the ProfilePart?