una/template/comments_uploader_bs.html

<a href="javascript:void(0);" onclick="__uploader_instance_name__.showUploaderForm();" class="bx-btn bx-def-margin-sec-top bx-def-margin-sec-left cmts-uploader-button">
    <i class="sys-icon __button_title__"></i>
</a>
<bx_include_auto:uploader_button_simple_js.html />