```ruby
class EnhancedNavball < Kosmos::Package
  title 'Enhanced Navball'
  url 'http://addons.cursecdn.com/files/2201/977/EnhancedNavBall_1_2.zip'

  def install
    merge_directory 'EnhancedNavBall/Plugins'
  end
end
```

Update EnhancedNavball to use the new package installation method.
user
```ruby
class EnhancedNavball < Kosmos::Package
  title 'Enhanced Navball'
  url 'http://kerbal.curseforge.com/plugins/220469-enhanced-navball-v1-2'

  def install
    merge_directory 'EnhancedNavBall/Plugins'
  end
end
```
assistant