how i can extend swaggerui documentation? some text for methods and possible paremetrs
As far as I know, there is no way to enrich the documentation automatically, other than modifying the provided json file.
This is the documentation on that topic: http://www.tmssoftware.biz/business/xdata/doc/web/openapi_swagger-support.html
Indeed for now it's not possible. We are investigating the best way to do it (including extracting XML doc information).