Hi, I have noticed that a feature in Oxygen 10.0 is the XML instance generator from W3C XML Schemas. I use the ISO 19139 W3C XML Schemas with my work. In these there is an element called "MD_Identifier" which has an 'authority' element as one of its children. The 'authority' element is of type 'CI_Citation' which has a child element of 'identifier'. This 'identifier' element is of type 'MD_Identifier' so you see that there is a recursive call on the 'MD_Identifier' element. If these W3C XML Schemas were used to generate an XML document instance, the resulting XML would just keep on being built until the process was stopped unless there was a way of setting the number of times or levels that an element is recursively called. Can this be set in Oxygen 10.0? That is, can I stop the recursive call of an element and its children after so many loops? Thanks. John