Validating XSLT Stylesheets with Custom Engines

If you need to validate an XSLT stylesheet with a validation engine that is different from the built-in engine, you can configure external engines as custom XSLT validation engines in the Oxygen XML Editor preferences. After a custom validation engine is properly configured, it can be applied on the current document by selecting it from the list of custom validation engines in the Validation toolbar drop-down menu. The document is validated against the schema declared in the document.