title: Is it possible to have shared tasks for different environments (stages) on VSTS?
body: <p>I have release pipeline in VSTS that has four stages. Dev, Test, Pre-Prod and Prod. These stages share the same steps and the only difference are the variable values that change depending of the stage.</p>
  
  <p>At the moment if I add a new step I have to add it on the four stages even if it is the same and the only difference is the value of the variables.</p>
  
  <p>Is it possible to have a shared stage that is used by my four environments where the only difference would be the variables. This is to prevent having to add the same step four times</p>