title: Printing multiple (different) labels in one ZPL commands
body: <p>I have followig task:</p>
  
  <p>I am generating sequence of consecutive barcodes eg: 117-1, 117-2, 117-3, 117-4...</p>
  
  <p>I have to print labels with those barcodes: first label with first code, second label with second code and so on.</p>
  
  <p>Currently I am printig labels one-by-one. Is it possible in ZPL to combine multiple labels to one command for printer? Something like:</p>
  
  <pre><code>^header
  print first one
  take next label
  print second one
  take next label
  ...
  ^footer
  </code></pre>
  
  <p>I am generating ZPL so there is no need to introduce variables in ZPL.</p>
  
  <p>My current code for printing single label</p>
  
  <pre><code>    string zpl = string.Format(
      @"^XA
      ^LH5,5
  
      ^CF0,129
      ^FO20,10
      ^FB800,4,,C
      ^FD{0}
      ^FS
  
      ^FO160,150
      ^FB800,1,,C
      ^BY3
      ^BCN,150,N,N,N
      ^FD{0}
      ^FS
      ^XZ
      ", code.ToString());
  </code></pre>