title: split view controller navigation
body: <p>I know this is possible, but I'm just not finding the example to help me do it.  I have a split view controller that shows tree families for example.  The left master frame shows Hardwood, Evergreen, etc.  When I select Hardwood, the detail frame shows general information about Hardwoods, selecting Evergreen shows similar information about evergreens.  If I select the detail disclosure button accessory on the Evergreen, I want the master view to be replaced with a list of Evergreens, and selecting on a specific evergreen will give detailed information about that specific type of tree.  Navigating back from the evergreen tree family in the master view, should take me back to the tree family listing and clear the detail view so it's ready to display information about the family chosen in the family master view.<br>
  I have the family master view working fine.  It's how to setup the segue to the second level splitview that I'm having trouble with.  Any help or tutorials showing the nesting relationship would be appreciated.
  Thanks</p>
  
  <p>Updated, Here are mockups of pictures of what is happening.
  <img src="https://i.stack.imgur.com/p0yRr.jpg" alt="This is what I start with.  The left view has a list of tree families, and the right has general information about that family.  Ignore the electrical outlet, It&#39;s just a picture I had handy.">
  This is what I start with.  The left view has a list of tree families, and the right has general information about that family.  Ignore the electrical outlet, It's just a picture I had handy.
  <img src="https://i.stack.imgur.com/PKtBb.jpg" alt="When I click on the accessory for the selected family, I get this screen, with individual tree types, and information about those tree types.  The information and fields does not match with the information from the family detail view so I can&#39;t just reuse that.">
  When I click on the accessory for the selected family, I get this screen, with individual tree types, and information about those tree types.  The information and fields does not match with the information from the family detail view so I can't just reuse that.</p>
  
  <p><img src="https://i.stack.imgur.com/Qv0Va.jpg" alt="When I click the Family navigation button (back button) at the top of the table view, it takes the table view back like it should, but the detail view is stuck and I can&#39;t get it to go back where it should be.">
  When I click the Family navigation button (back button) at the top of the table view, it takes the table view back like it should, but the detail view is stuck and I can't get it to go back where it should be.</p>