XSLT

The XSLT preferences panel is opened from menu Window > Preferences > Author > XML > XSLT/FO/XQuery > XSLT .

The XSLT Preferences Panel

If you want to use an XSLT transformer implemented in Java different than the ones that ship with Oxygen namely Apache Xalan and Saxon all you have to do is to specify the name of the transformer's factory class which Oxygen will set as the value of the Java property javax.xml.transform.TransformerFactory. For instance, to perform an XSLT transformation with Saxon 9.3.0.5 you have to place the Saxon 9.3.0.5 jar file in the Oxygen libraries folder (the lib subfolder of the Oxygen installation folder), set net.sf.saxon.TransformerFactoryImpl as the property value and select JAXP as the XSLT processor in the transformation scenario associated to the transformed XML document.

The XSLT preferences are the following: