I have tried but not much success: I did look through the XPATH tutorial.

I need "yo" and "yo2" element2 output as well...i keep getting 6 groups with values from misc1 tags only is first 3 groups, then misc2 elements in the next 3 groups.

Input:

<tag>
<misc1>
<addedlevel1>
<yo>
<matchfield>A</matchfield>
<another>1</another>
</yo>
</addedlevel1>
</misc1>
<misc1>
<addedlevel1>
<yo>
<matchfield>B</matchfield>
<another>5</another>
</yo>
</addedlevel1>
</misc1>
<misc2>
<addedlevel2>
<yo2>
<matchfield>A</matchfield>
<anotherone>2</anotherone>
</yo2>
</addedlevel2>
</misc2>
<misc2>
<addedlevel2>
<yo2>
<matchfield>B</matchfield>
<anotherone>9</anotherone>
</yo2>
</addedlevel2>
</misc2>
</tag>


output:

Thoughts?

Nevermind...i got it i think

<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">

<xsl:strip-space elements="*"/>
<xsl:output indent="yes"/>

<xsl:key name="k1" match="tag/*" use="*/*/matchfield"/>

<xsl:template match="tag">
<xsl:copy>
<xsl:for-each select="*[generate-id() = generate-id(key('k1', */*/matchfield)[1])]">
<group>
<xsl:copy-of select="key('k1', */*/matchfield)"/>
</group>
</xsl:for-each>
</xsl:copy>
</xsl:template>

</xsl:stylesheet>

Hey just wanted to say thanks again. I have what i need now. To complicate things is that i had a single whitespace that wouldn't let grouping occur for days now.