title: How to show only few columns by default in adf tree
body: <p>I am trying to render a table using adf treeTable component. The table has got so many columns and I just want to show only few columns by default. If the user selects few more columns from view menu on the panel, then selected columns should be shown but by default when the table gets rendered fro the first time, I want show only set of columns.</p>
  
  <p>Default behavior of the treeTable is it shows all the columns. Please  help in here. </p>