Thanks for trying it out!

Yes - there are, or will be, other special fields, such as 'transpose' (so table headers would go in the first column instead of the first row). I was still figuring out which flags should be included, which is why it was under-documented.

Never expected sub-tables as a use case. Displaying nested cells would require a substantial re-write, but having logically nested tables may work... you'd just need to call the table making boilerplate function manually.