Hi,
Currently Reporting is available in FlexCel .NET or in FlexCel 3.8 (which doesn't support firemonkey, so it isn't crossplat).
Reports are coming back to FlexCel VCL/FM in 6.1, and they will be much more powerful than the reports in 3.8 (what the manual you linked was about). It will be at almost the same level as the reporting engine in .NET (without LINQ support of course).
The report engine is currently in beta an already working, but I still have to do a lot of testing an demos/docs, and sadly right now the priority is FlexCel 6 for .NET. Once that is released, next step will be reports for VCL 6.1, which as said, are mostly complete already.