Show "Mine" Pages Panel by Default in WordPress Admin

//  SHOW "mine" PAGES PANEL BY DEFAULT ----------------------------------------------
add_action( 'admin_menu', 'ten80_pages_default_mine' );
function ten80_pages_default_mine(){
    global $submenu;
    global $current_user;
    get_currentuserinfo();
    if( current_user_can( 'edit_published_posts' ) ):
        $submenu['edit.php?post_type=page'][5][2] .= "&author_name=".$current_user->user_nicename;
    endif;
    return;
}   //  end ten80_pages_default_mine()