doitinpoland.com/wp-content/plugins/sitepress-multilingual-cms/templates/translation-editor/group.html

<% if ( title ) { %><%= title %><% } %>
<div class="inside">
</div>

<% if ( divider ) { %>
<hr />
<% } %>
<button class="button-copy button-secondary js-button-copy-group">
	<i class="otgs-ico-copy"></i>
</button>