[tbo]

Actually I found another way to get it working and retaining some sort of formatting: Export as RTF and open with NisusWriter (or Word). Then convert the whole text to a table and NW (or Word) will put the columns back into place. Delete the columns you don't need and copy the table text. Delete the table and paste the copied text from the clipboard. Now assign new paragraph styles to the different text styles.
This not a thing you want to do every day, but works for handouts and lectures where you do it once every few months.
I would love to habe a few more export options on OO, though...