title: Postman save and lock (prevent editing) request / collection
body: <p>In Postman, once you have created a request or collection and have fine tuned it, is there any way to lock it so as to make it read only so that it can't be accidentally altered?</p>
  <p>Obviously I would need something to toggle it back to editable again!</p>
  <p>Thanks in advance</p>