title: Expression Builder of Connection Manager not showing Variables
body: <p>I'm having this exact <a href="http://social.msdn.microsoft.com/Forums/en-US/sqlintegrationservices/thread/71d0d35b-0ef5-4f3a-a91a-b9664fe89ad9/" rel="noreferrer">same problem</a> I've been looking aroung but this is the only place I've seen the same issue and it is not resolved.</p>
  
  <p>Does anyone knows what the problem might be?</p>
  
  <p>I checked in Visual Studio and my SSIS version is 11.0.2100.60 (not a trial, not a beta).</p>
  
  <p><strong>EDIT:</strong> These are the steps I'm taking and the issue</p>
  
  <p>First I choose a Connection Manager, right-click, select properties and click in Expressions option
  <img src="https://i.stack.imgur.com/5k9N9.png" alt="step one"></p>
  
  <p>Then in Property Expression Builder choose Connection String property and click in Expression option
  <img src="https://i.stack.imgur.com/9nt5V.png" alt="enter image description here"></p>
  
  <p>Finally, in the Expression Builder dialog there is no option for variables, in every page I've read says that there should be a Variables node in there
  <img src="https://i.stack.imgur.com/bGXL2.png" alt="enter image description here"></p>
  
  <p>Am I missing something?</p>