Oops! I can't reproduce the error any more. A bulk of changes made since, it's hard to reproduce the situation exactly. I'll send a sample if the problem appear again.

:!: Sometimes temporary file remains locked after XSLT chain applying. More precisely, when an error occurs in the beginning of XSLT chain. The consequence is that the XSLT transformation fails to start until either the editor is closed/opened or different transformation scenario is selected. (The l...

It would be nice to have an option to calculate XPath expression in XPath view using current selected element as XPath context.
It may be also useful to view current node XPath (in separate view or popup window).