Add sidebar , Sidebar registry, Add new sidebar in wordpres

Just Copy the wp default sidebar and rename with different like sidebar-new.php
Open functions.php file add the extra code(bellow) in default function.

register_sidebar (array(
'name' => sprintf(__('sidebar-new'), $i ),
'id' => 'sidebar-new',
'before_widget' => '<li id="%1$s" class="widget %2$s">',
'after_widget' => '</li>',
'before_title' => '<h2 class="widgettitle">',
'after_title' => '</h2>' ));

and your final code will show like this

if ( function_exists('register_sidebar') ) {
register_sidebar(array(
'before_widget' = '<li id="%1$s">',
'after_widget' = '</li>',
'before_title' = '<h2>',
'after_title' = '</h2>',
));
register_sidebar (array(
'name' =sprintf(__('sidebar-new'), $i ),
'id' ='sidebar-new',
'before_widget' = '<li id="%1$s" class="widget %2$s">',
'after_widget' = '</li>',
'before_title' = '<h2 class="widgettitle">',
'after_title' = '</h2>' ));
}

For dynamic you have to change a little code from sidebar-new.php
Just change

if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar() ) : ?>
To
if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar('sidebar-new') ) : ?>

Finally you just include sidebar-new.php file to your selected template.

example

<?php include('sidebar-new.php');?>

And enjoy with dynamic site.