// options.xml

<template id="testobox_opt" name="Testobox" inherit_id="website.snippet_options">

<xpath expr="//div[@data-js='background']" position="after">

<div data-selector=".snippet_testobox"> <!-- Options group -->

<li class="dropdown-submenu">

<a href="#">Your Option</a>

<ul class="dropdown-menu"> <!-- Options list -->

<li data-select_class="opt_shadow"><a>Shadow Images</a></li>

<li data-select_class="opt_grey_bg"><a>Grey Bg</a></li>

<li data-select_class="opt_border"><a>Border</a></li>

<li data-select_class=""><a>None</a></li>

</ul>

</li>

</div>

</xpath>

</template>