title: Is that possible to nest a slack channel inside another slack channel?
body: <p>Say, I have a channel named <code>teamA</code>, and also got a channel named <code>subTeamB</code>, and <code>subTeamB</code> is actually a sub-team of team A, e.g. all members in <code>subTeamB</code> included in <code>teamA</code>.</p>
  
  <p>In this case, is that possible to have <code>subTeamB</code> nested inside <code>teamA</code>?</p>