Hi Guys,
Today another update of official Manual.
In this last update info about exporting Mesh LODs and exporting hierarchical models from Maya have been added:
http://www.s2powered.com/Docs/html/de/d32/export_maya.html
Also info have been added to the "Importing FBX into S2Engine section" about Hierarchical models:
http://www.s2powered.com/Docs/html/dc/dc2/import_models.html