title: set_block_property with multiple columns for order by clause
body: <p>I am working on a form where I have 3 lov fields in data block which represents the column names for the query to sort.</p>
  
  <p>How can I set the <code>set_block_property</code> to take more than one column and then sort accordingly.</p>
  
  <p>Eg: </p>
  
  <pre><code>set_block_property('table name', order by, column1, column2, column3)
  </code></pre>
  
  <p>at present it is giving error as too many arguments.</p>