Hi Sebastian,

You can do that with the help of uComponents' Render Macro DataType and this little XSLT macro - just create it like any other macro and select it in the Render Macro datatype. Then create a property on the DocumentType(s) where you want to show it:

<?xml version="1.0" encoding="utf-8" ?>
<xsl:stylesheet
    version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:umb="urn:umbraco.library"
    exclude-result-prefixes="umb"
>

    <xsl:output method="xml" indent="yes" omit-xml-declaration="yes" />

    <xsl:param name="currentPage" />

    <xsl:template match="/">
        <a href="{umb:NiceUrl($currentPage/@id)}" target="_blank"><xsl:value-of select="umb:NiceUrl($currentPage/@id)" /></a>
    </xsl:template>

</xsl:stylesheet>

/Chriztian