title: Auto change Woocommerce Subscriptions status to "On-Hold" rather than "Active"
body: <p>In Woocommerce, I would like to automatically put all Woocommerce Subscriptions "on hold" rather than "active" when the order is still "processing". Once I mark the order as "completed" that subscription should change to "active".</p>
  
  <p>I've tried everything I can think of, if somebody knows how to do this please let me know.</p>
  
  <p>I'm running wordpress 4.8.1 / Woocommerce 3.1.2 / Woocommerce Subscriptions 2.2.7 / and the payment gateway is Stripe 3.2.3.</p>