That's probably just a weakness of KC. I haven't tinkered with it much but it doesn't seem tailored for more complex needs. From what I read, it kind of sounded like your best shot at it would be to build things like that out in word and then import them rather than try to create them in KC. Which is a good thing honestly, because KC does not offer a good way to extract the work you do within it as anything other than a KC file.