[xwiki-users] Each sub-wiki has own storage location... is it possible?

Hi, all! For now we have a possibility to move wiki's filestorage easily by changing path in config file. Cool! In multi-sub-wiki environment it looks very useful (sometimes) to split common storage and move sub-wiki's storage to other place. Is there any simple way to set location of each sub-wiki's storage? If not, is it easy to implement? Kind Regards Dmitry Bakbardin