Currently grouping is not supported, but it will probably be the top feature (along with Excel export) for the next versions of the product. There is a poll in the blog home-page with “Which Feature Do You Need” question – you can vote there for your favourite feature.

Regards,

Rumen Stankov

Thanks for the follow-up. I guess you mean multi-column headers, e.g. a column can have one header and two subheaders? This is still not supported but is a good idea and we might consider it in the future. We cannot give you an exact time estimate, though.