title: setting a label after define
body: <p>I have a display statement and I only display one of the values if a logical is true. How can I NOT display the label of the column (ie. blank)</p>
  
  <pre><code> def var one as char label "one" no-undo.
   def var two as char label "two" no-undo.
   def var three as char label "three" no-undo.
   def var four as char label "four" no-undo.
   def var logic as logi no-undo init no.
  
   display  
     one
     two
     three
     four when logic
   with stream-io width 80.
  </code></pre>