title: Is there a way to get custom Django admin actions to appear on the "change" view in addition to the "change list" view?
body: <p>I thought for whatever reason this would be easy to do, but I looked deeper and it appears there is no straightforward way to allow users to execute custom admin actions on the "change" view of an instance (i.e. when you are just viewing the edit screen for a single instance, not the list of instances).</p>
  
  <p>Am I overlooking an easy way to do this? Or is my only choice to override one of the admin templates (and probably the <code>ModelAdmin.add_view</code> method)?</p>