sidebar

Allows adding of custom content to the sidebar in the administrator’s backend.

Helpdesk

Input (passed by reference)

$action helpdeskBackendSidebarAction Instance of the action class used to generate the sidebar contents.
… your plugin code …

Output

{$sidebar.%plugin_id%}
Custom content to be added below common filters’ links.
Helpdesk

Plugin code example

PHP

public function sidebar($action)
{
    return '<div class="block">
        <h5 class="heading">' . _wp('My plugin') .  '</h5>
        <ul class="menu-v">
            <li>
                <a href="#/myplugin/"><i class="icon16 user"></i> ' . _wp('Settings') .  '</a>
            </li>
        </ul>
    </div>';
}