please, read my aboving reply...

U need call $sidebar = elgg_view("videochat/sidebar");

and then add it as array

$body = elgg_view_layout('two_column_left_sidebar', array(
    'content' => $content,
    'title' => $title,
    'sidebar' => $sidebar,
    ));

I do all how you write , but I don't see  items

1 - What Tokbox method in your videochat settings?

2 - Which on pages you want to see sidebar?

1- API 2-http://sitename.ru/vkte/vk/videochat/

 Add

$sidebar= elgg_view("videochat/sidebar");

and

$body = elgg_view_layout('two_column_left_sidebar', array(
    'content' => $content,
    'title' => $title,
    'sidebar' => $sidebar,
    ));

In all files in this folder

mod\videochat\pages\

in this dir I have 3 files create.php

this code

<?php  
        /**
         * @package OpenTok VideoChat
         * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
         * @author Roger Curry, Grid Research Centre [curry@cpsc.ucalgary.ca]
         * @link http://grc.ucalgary.ca/
     * @author Jeroen Dalsem, ColdTrick IT Solutions [jdalsem@coldtrick.com]
         * @link http://coldtrick.com/
     * @remark Please see CREDITS
         */
 
    // title
    $title_text = elgg_echo("videochat:forms:create");
    $content = elgg_view_title($title_text);
    $content = elgg_view("videochat/forms/create");
        $sidebar = elgg_view("videochat/sidebar");
    //select the correct canvas area
    $body = elgg_view_layout('two_column_left_sidebar', array(
    'content' => $content,
    'title' => $title,
    'sidebar' => $sidebar,));
        
    // Display page
    echo elgg_view_page($title_text,$body);
    
?>

2 files index.php

<?php  
        /**
         * @package OpenTok VideoChat
         * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
         * @author Roger Curry, Grid Research Centre [curry@cpsc.ucalgary.ca]
         * @link http://grc.ucalgary.ca/
     * @author Jeroen Dalsem, ColdTrick IT Solutions [jdalsem@coldtrick.com]
         * @link http://coldtrick.com/
     * @remark Please see CREDITS
         */
 
    global $CONFIG;
 
    // title
    $title_text = elgg_echo("videochat:index:title");
    $content = elgg_view_title($title_text);
    $sidebar= elgg_view("videochat/sidebar");
    
    
    if(elgg_get_plugin_setting("tokbox_method", "videochat") != "embed"){
    
        $rooms_options = array(
                "type" => "object",
                "subtype" => "videochat_room",
                "limit" => false
            );
            
        $rooms = elgg_list_entities($rooms_options);
        if(empty($rooms)){
            $body = elgg_echo("videochat:rooms:no_rooms");
            if(isloggedin()){
                $body .= " " . sprintf(elgg_echo("videochat:rooms:start_one"), "<a href='" . $CONFIG->wwwroot ."pg/videochat/create'>", "</a>");
            } else {
                $body .= " " . elgg_echo("videochat:rooms:login_to_start_one");
            }
            
            $rooms = elgg_view("page_elements/contentwrapper", array("body" => $body));
        }
        
        $content .= $rooms;
        
        //select the correct canvas area
        $body = elgg_view_layout('two_column_left_sidebar', array(
    'content' => $content,
    'title' => $title,
    'sidebar' => $sidebar,
));
 
    } else {
        $title = elgg_view_title($title_text);
 
        $embed_url = get_plugin_setting("tokbox_embed_url", "videochat");
        $embed= '<iframe id="basicEmbed" src="' . $embed_url . '" width="350" height="265" style="border:none"></iframe>';
 
 
        $body = elgg_view_layout('two_column_left_sidebar', array(
    'content' => $content,
    'title' => $title,
    'sidebar' => $sidebar,
));
    }
    
    // Display page
    echo elgg_view_page($title_text,$body);
?>

3 file join.php

<?php
        /**
         * @package OpenTok VideoChat
         * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
         * @author Roger Curry, Grid Research Centre [curry@cpsc.ucalgary.ca]
         * @link http://grc.ucalgary.ca/
     * @author Jeroen Dalsem, ColdTrick IT Solutions [jdalsem@coldtrick.com]
         * @link http://coldtrick.com/
     * @remark Please see CREDITS
         */
 
    global $CONFIG;
    require_once($CONFIG->pluginspath . "videochat/vendors/opentok-php-sdk.2011-08-26/OpenTokSDK.php");
    
    $group_guid = get_input("group_guid");
    $popout = get_input("popout", false);
    $group_layout = false;
    
    if(!empty($group_guid) && ($group = get_entity($group_guid))){
        if($group instanceof ElggGroup){
            // chat initiated from a group
            if($room_id = $group->videochat_room_id){
                // room previously created
                $room = get_entity($room_id);
                $group_layout = true;
            }
            
            if(!$room){
                // no room was previously created, or something else went wrong, create a new persistent group chatroom
                
                try {
 
            $api = new OpenTokSDK(API_Config::API_KEY,API_Config::API_SECRET);
try {
    $session_id= $api->create_session('127.0.0.1')->getSessionId();
 
 
}catch(OpenTokException $e) {
    print $e->getMessage();
}
                    if(!empty($session_id)){
                    
                        $room =  new ElggObject();
                        $room->subtype = "videochat_room";
                        $room->owner_guid = $group->getGUID();
                        $room->title = sprintf(elgg_echo("videochat:room:group"), $group->name);
                        $room->access_id = $group->group_acl;        
                        
                        if($room->save()){
                            $room->session_id = $session_id;
                            $room->persistent = true;
                            $group->videochat_room_id = $room->getGUID();
                            $group_layout = true;
                        } else {
                            register_error(elgg_echo("videochat:actions:create:error_save"));
                            $forward = REFERER;
                        }    
                    } else {
                        register_error(elgg_echo("videochat:actions:create:no_call_id"));
                        $forward = REFERER;
                    }
                    
                } catch(Exception $e) {
                    
                    $error = $e->getMessage();
                    register_error($error);
                    
                    $forward = REFERER;
                }
            }
        }
    }
    
    if(empty($room)){
        // no group so try normal join
        $room = get_entity(get_input("guid"));
        
        if($room){
            // check if this is a group room
            $videochat_options = array(
                "type" => "group",
                "limit" => 1,
                "metadata_names" => "videochat_room_id",
                "metadata_values" => $room->getGUID()
            );
 
            if($groups = elgg_get_entities_from_metadata($videochat_options)){
                $group = $groups[0];
                $group_layout = true;
            }
        }
    }
    
    if($group_layout){
        set_context("groups");
        set_page_owner($group->guid);
    }
 
    if($room instanceof ElggObject && $room->getSubtype() == "videochat_room"){
        
        if(!empty($room->session_id)){
        } else {
            $error = elgg_echo("videochat:join:no_callid");
        }
    } else {
        $error = elgg_echo("videochat:join:no_room");        
    }  
    
    if(!empty($error)){
        register_error($error);
        forward($CONFIG->wwwroot . "pg/videochat");
    } else {
         
        // title
        $title_text = elgg_echo("videochat:index:title") . ": " . $room->title;
        $title = elgg_view_title($title_text);
        $body = elgg_view("tokbox/chat", array("callUrl" => 'dummy', "popout" => $popout, "group_layout" => $group_layout, "room" => $room));
 
        //select the correct canvas area
        if($popout){
            echo "<html><head><title>" . $title_text . "</title><link href=\"" . $CONFIG->wwwroot . "/mod/videochat/views/default/videochat/css.php\" rel=\"stylesheet\"><script type=\"text/javascript\" src=\"" . $CONFIG->wwwroot . "vendors/jquery/jquery-1.3.2.min.js\"></script></head><body>" . $body . "</body></html>";
        } else {
            if($group_layout){
                
                $page_data = elgg_view_layout("two_column_left_sidebar", "", $title . $body);    
            } else {
                $page_data = elgg_view_layout("one_column", $title . $body);
            }
            
            // Display page
            page_draw($title_text,$page_data,$sidebar);
        }
    }    
?>

when I must past you code. please help

Just in create.php for this URL your-cool-site.com/videochat/create

and index.php for this URL your-cool-site.com/videochat/

Both URL should display the sidebar (on the right side)

I don't understand. this plugin may load in this page >>>>>>

add_submenu_item(elgg_echo('videochat:menu:rooms'), $CONFIG->wwwroot."pg/videochat");

elgg_register_menu_item('page', array('name' => elgg_echo('videochat:menu:rooms'), 'href' => $CONFIG->wwwroot."videochat"));

http://reference.elgg.org is your friend...

'page' (menu name) is a necessary parameter. It's not a menu but a menu item that should be created.

"pg": pagehandler function might need some updates before the link will work ("pg" is Elgg 1.7 and older - Elgg 1.8 has no "pg" in urls anymore).

This plugin work on Elgg 1.7 very well.