edx-platform/cms/static/client_templates/metadata_editor.html

<div class="wrapper-comp-settings" id="settings-tab">
	<ul class="list-input settings-list">
	    <% _.each(metadata_entries, function(entry) { %>
	    <li class="field comp-setting-entry">
	        <div class='metadata_entry' />
	    </li>
	    <% }) %>
	</ul>
</div>