title: How to clone a single file using SourceTree?
body: <p>Lets say I have two projects in sync with online repos:</p>
  
  <ul>
  <li>Project - A consisting of files A1, A2, A3  (repo-A)</li>
  <li>Project - B consisting of files B1, B2, B3 (repo-B)</li>
  </ul>
  
  <p>Now, if I need A2 in Project-B, how do I clone using SourceTree just the file A2 from repo-A into Project-B?</p>