How can I create a Install New Module-style "add button"? In the Modules page, there is a button that looks like this:



Is this easy to reproduce? If so, how is it done?
Figured it out. You create a sub-item in your hook_menu(), then set its type to MENU_LOCAL_ACTION.

  $items['menu/url'] = array(
    // --snip--
    'type' =&gt; MENU_LOCAL_ACTION,
    // --snip--
  );