<se:embedpreview location="183">
    <se:parameters>
        <se:parameter name="customdata">
            <se:collection>
                <se:member name="title">
                    My preview title
                </se:member>
                <se:member name="logic">
                    My preview logic
                </se:member>
            </se:collection>
        </se:parameter>
    </se:parameters>
</se:embedpreview>