Right now if I have two files open (say file A and B) split between two editors, and I have a build error in file A, if I double click on file A, file A will open in the last focused editor. If that happens to be on file B, I will then have to editors open to file B, which kind of takes the point of out splitting the screen up.

It would be awesome if the function could check to see if that file it's about to jump to is open in any of the displayed editors and use that one. If no editor contains that file, it could use the latest one as it currently does.