The standard "Export" button was implemented in
KULRICE-2287. However we need to implement the custom functionality provided by "export hierarchy" provided on the Document Type inquiry.
This would require one of 2 things:
1) The ability to specify custom buttons on an inquiry
2) The ability to define custom parameters to XML export, exposed in some standard way via the interface
I had heard the first was in the process of being implemented (probably on the KFS branch of 0.9.4?) I need to verify though whether or not that is the case.