title: Sublime Text 3: do not close tabs automatically
body: <p>I am navigating the code of a big JavaScript library using Sublime Text 3. So I need to open a lot of tabs and switch between them to capture the code co-reference. However, Sublime closes 'unused' tabs automatically for me. </p>
  
  <p>How to disable it? I googled but cannot find a solution. I find a shortcut <code>ctrl+shift+t</code> to restore the most recent closed file, but that is not enough. I need to disable the automatic closing, and that would  be better if someone shows me the short key to "display and select a file from all open files". Thanks.</p>