reporting-engine/bi_view_editor/templates/assets_template.xml

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
    <data>

        <template id="assets_backend" name="bi_view_editor assets" inherit_id="web.assets_backend">
            <xpath expr="." position="inside">
                <link rel="stylesheet" href="/bi_view_editor/static/src/css/bve.css"/>
                <script type="text/javascript" src="/bi_view_editor/static/src/js/bve.js"></script>
            </xpath>
        </template>

    </data>
</openerp>