title: Search file in Xcode
body: <p>I use xcode search to quick open files in project. It works very good when the files are in current project, but when I have one project that includes other sub-projects it searches only in files from current project. Is it possible to search a file in all files from all sub-projects?
  I don't like to open a sub-project every time when I want to search a file that is not included in main project.</p>
  
  <p>Thanks</p>