[macula]

Many thanks, Rob, for looking into this.

Perhaps I'm missing something (have been sleepless, writing, and therefore not razor sharp) but this doesn't quite solve the issue.

The reason is that "inverting" my row selection results in an indeterminate parent row being selected, and therefore ALL its children also being selected. Instead, what I would like to do is produce a new OO document containing the indeterminate and checked rows but not the unchecked ones, and this without flattening the hierarchy in any way.

Does this make any sense?

Thanks again.