XSLT that can be applied for the services that are requested to be sent with "WS-Addressing" "true", a certain action and "Add default wsa:To" selected in the SoapUI program.

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:tem="http://tempuri.org/"
xmlns:wsa="http://www.w3.org/2005/08/addressing">

<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="@*|node()">
	<xsl:copy>
		<xsl:apply-templates select="@*|node()"/>
	</xsl:copy>
</xsl:template>
<xsl:template match="/soap:Envelope">
	<xsl:copy>
		<soap:Header>
			<wsa:Action>#Action requested to be sent#</wsa:Action>
			<wsa:To>#"To" address written in wsdl#</wsa:To>
		</soap:Header>
<xsl:apply-templates/>

</xsl:copy>
	</xsl:template>
	<xsl:template match="soap:Header"/>
</xsl:stylesheet>
XML