Make editor open engine solution instead of project solution

I am using source build, but the editor generates visual studio solution in the project directory, and always uses it when regenerating, compiling and when I choose “Goto Code Definition”. Moreover that project solution does not work (“load failed” appears near project names), but maybe this is normal with source builds.
The same also happens to my team mates, so it should not be due to an error in my setup.
Is there a way to make the editor use the whole engine solution (UE4.sln)?