Option: show open files inline rather than in a separate list

I prefer to display open files in the sidebar instead of in tabs. It would be great to have an option to show open files inline in the folder view rather than a separate list. I think of my files grouped like my folder structure and frequently switch between files in the same folder. The open files list is a jumble of files. I can drag them around but that's more work—I already organized the files into folders. Along with this when opening a project, folders containing open files should be expanded by default so the files are visible. Please keep the one-click to display feature for open files though. In fact, I suggest it be the default behavior.