title: How to change action of Ship button to own Module/controller/action in Magento admin order view screen?
body: <p><img src="https://i.stack.imgur.com/fSH1o.png" alt="Magento admin"></p>
  
  <p>How can I change the action of the <code>Ship</code> button in the <code>Order view</code> screen in the Magento backend? The image above depicts the <code>Ship</code>button I mean. I want to point it to my own controller/action of my own module. I want to do this as clean as possible, to keep Magento upgradeable without breaking my module.</p>