title: How to drive app config value via my test scenario
body: <p>In the app.config file of my Selenium-Specflow-Nunit framework I have a key to set customer value (e.g. Walmart, Amazon, BestBuy, etc). To run my test against each of these customers I need to change the key value in app.config file everytime. That means I can't run the test for all customers at one run and controlled from my Specflow scenario.</p>
  
  <p>Wondering is there a way to drive and control the customer key value of config file from the test?</p>