It can be useful to have DataTables initialise more than one table with a single call can for them to each have individual ColVis controllers. All this requires is a suitable jQuery selector to be used, and DataTables and ColVis will take care of the rest - as shown in this example.
$(document).ready( function () {
$('table').dataTable( {
"sDom": 'C<"clear">lfrtip'
} );
} );