Attempting to override the data source for dataTables view to allow for multi-column sort. This should be view agnostic, allowing for these options to override any datatable view.

gravityview-edit-datatables-options.php

<?php
/*
* Plugin Name:       	GravityView - Edit DataTables Options
* Plugin URI:        	http://gravityview.co/extensions/datatables/
* Description:       	This plugin is used to override the datatables data source and extend it.
* Version:          	1.0
* Author:            	Katz Web Services, Inc. , Marc Gratch
* Author URI:        	http://www.katzwebservices.com
* License:           	GPLv2 or later
* License URI: 			http://www.gnu.org/licenses/gpl-2.0.html
*/

add_filter( 'gravityview_datatables_js_options', 'disable_gravityview_datatables_search', 10, 3 );
/**
 * Disable the DataTables search filter
 * @param  [type] $dt_config [description]
 * @param  [type] $view_id   [description]
 * @param  [type] $post      [description]
 * @return [type]            [description]
 */
function disable_gravityview_datatables_search( $dt_config, $view_id, $post ) {

    $array_to_encode = array();
    $col_id          = array();
    $col_labels      = array();
    $field_settings  = array();
    $view_data       = gravityview_get_current_view_data($view_id);
    $return_config   = $dt_config;
    $columns         = $return_config['columns'];
    $entries         = gravityview_get_entries($view_data['form_id']);

    foreach ($columns as $temp_col){
        $field_id = substr($temp_col['name'],3);
        $col_id[] = $field_id;
        $col_labels[] = array(
            'name'  => gv_label($field_id),
            'width' => null
        );
    }

    $columns = $col_id;

    foreach ($entries as $entry_a){
        $entry_data = array();
        foreach ($columns as $col){
            //$entry_data[] = gravityview_get_field_value($entry_a,$col,$display_value);
            $field_settings['id'] = $col;
            $entry_data[] = gv_value($entry_a,$field_settings);
        }
        $array_to_encode[] = $entry_data;
    }

    unset($return_config['ajax']);
    $return_config['serverSide'] = false;
    $return_config['searching'] = false;
    $return_config['stateSave'] = false;
    $return_config['processing'] = false;
    $return_config['deferRender'] = false;
    $return_config['retrieve'] = false;
    $return_config['data'] = $array_to_encode;
    $return_config['columns'] = $col_labels;

    return $return_config;
}

add_filter( 'gravityview_search_criteria', 'my_gv_custom_role_filter', 110, 1 );

function my_gv_custom_role_filter( $criteria ) {
    $criteria['search_criteria']['status'] = 'active';
    $criteria['paging'] = array( 'offset' => 0, 'page_size' => 1000 );
    return $criteria;
}