title: Show dialog to choose workspace while it starts
body: <p>I know its a silly question but i am stuck into it from 2 hours..Can any body tell me how should i enable the dialog which opens at the time we  start eclipse and we choose workspace location from there.</p>
  
  <p>See I want this window to be displayed first when eclipse starts </p>
  
  <p><a href="https://i.stack.imgur.com/MSPDn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MSPDn.png" alt="enter image description here"></a></p>
  
  <p>By mistake I have checked "Use this as the default and do not ask again".</p>
  
  <p>Please guide me how to show up this dialog again</p>