odoo/addons/website_mail/views/website_email_designer.xml

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

<!-- Email Designer main page -->
<template id="designer_index" name="Email Designer">
    <t t-call="website.layout">
        <t t-set="head">
            <script type="text/javascript" src="/website_mail/static/src/js/website_email_designer.js"></script>
        </t>
        <div id="wrap">
            <div class="oe_structure container">
                <div class="row" style="width: 600px;">
                    <form class="form-horizontal" role="form">
                        <div class="form-group">
                            <label for="email_from" class="col-sm-2 control-label">Email From</label>
                            <div class="col-sm-10">
                                <input type="char" class="form-control" id="email_from"
                                    placeholder="my.email@example.com" t-att-value="template.email_from"/>
                            </div>
                        </div>
                        <div class="form-group">
                            <label for="email_to" class="col-sm-2 control-label">To (Email)</label>
                            <div class="col-sm-10">
                                <input type="char" class="form-control" id="email_to"
                                    placeholder="my.email@example.com" t-att-value="template.email_to"/>
                            </div>
                        </div>
                        <div class="form-group">
                            <label for="partner_to" class="col-sm-2 control-label">To (Partners)</label>
                            <div class="col-sm-10">
                                <input type="char" class="form-control" id="partner_to"
                                    placeholder="1,2,3" t-att-value="template.partner_to"/>
                            </div>
                        </div>
                        <div class="form-group">
                            <label for="reply_to" class="col-sm-2 control-label">Reply-To</label>
                            <div class="col-sm-10">
                                <input type="char" class="form-control" id="reply_to"
                                    placeholder="my.email@example.com" t-att-value="template.reply_to"/>
                            </div>
                        </div>

                        <div class="form-group">
                            <label for="subject" class="col-sm-2 control-label">Subject</label>
                            <div class="col-sm-10">
                                <input type="char" class="form-control" id="subject"
                                    placeholder="Subject" t-att-value="template.subject"/>
                            </div>
                        </div>
                    </form>
                    <div t-field="template.body_html"/>
                </div>
            </div>
        </div>
    </t>
    <t t-set="website.footer"></t>
</template>

</data>
</openerp>