I would like to request a new feature that allows the report header be able to span multiple rows and columns. Right now, there is only one header row. It would be nice to be able to say that the header consists of more than one row, and gives you the ability to specify the row and column span for each cell in the header. That way, you could create headers that could look like what is in the file attached for example.
The current version of DynamicJasper is 3.0.7b1, and this feature is not currently supported.