<part> should become <appendix> in another book

Hi,

I use xinclude to include certain documents in different books. In a certain context I want to use it as part in another as appendix.

I tried to remove the top level node with the following to my customization layer:

<!-- Remove all sections marked with wrapper -->

	<xsl:template match="part[@role='wrapper']" mode="profile">

		<xsl:apply-templates select="part" mode="profile" />

	</xsl:template>

And include it into the books like this:

<part>

	<title>Gerrit code reviews with Eclipse</title>

	<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="" />

</part>

or 

<appendix>

		<title>Gerrit code reviews with Eclipse</title>

		<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="" />

</appendix>

Unfortunately my customization removes not only the top level part element but the whole part.

Is anyone aware of a nice trick to replace part in some books with appendix? 

Best regards, Lars

P.S. What I would like to have is the equivalent of the <merge> node for defining Android layouts, this node is only their to have a valid XML file, but is removed during the include process.