Editing FB Group "doc"

The FB "doc" editor provided for Groups is pretty limited but I believe it can be enhanced using other tools. Specifically I would like to be able to wrap text around a photo object and to create a tables. Doing a little Google searching I discovered FB has a language for developers called fbxml. Can this be used to enhance a "doc"? Using an external editor such as Dreamweaver would be ideal but I haven't found a way to introduce the code. Copy and paste just gets a literal interpretation.

Help or pointers to documentation surely would be appreciated.

Thanks
Paul