title: VSTS - Create Process Parameters in Release Defintion
body: <p>In Visual Studion Teams Services Build Definitions I can outsource Task Settings 
  to Process Parameters by clicking on the (i) icon and then on "Link". </p>
  
  <p><img src="https://i.stack.imgur.com/1zAtZ.png" alt="Screenshot"></p>
  
  <p>I really like this feature and I would like to do the same in a Release Definition. But I cannot find a way to create Process Parameters in a Release Definition (no "Link" option). If I select one of the Release Defintion Templates (e.g. Azure App Service Deployment) there are a few OOTB Process Parameters which I can use, but I cannot create new parameters. I cannot use variables as they only store string values and for some release tasks, specific settings (e.g. Azure Subscription) cannot use a variable but a parameter.</p>