title: replace parameter name show on screen?
body: <p>When I'm defining a parameter, like:</p>
  
  <pre><code> PARAMETER pa_date TYPE d DEFAULT sy-datum.
  </code></pre>
  
  <p>How do I change "pa_date" to something else when the app is launched? I want to change it to something like "choose date".</p>
  
  <p>Any Ideas?</p>