Reports server on separate machine

I've read a paper called Epicor 9 Performance Tuning Guide (Virtual Environment). It says that "(it is possible to) add/remove application and reports servers as needed. It is possible to clone an application or report server and then add it to either the application or report server load balancing pool when more resources are needed."

So, it looks like I can have the application server and the reports server in two different virtual machines.

Anybody knows how to do that? My EPICOR installation consist on two machines only: the database and the appserver one. Is it possible to have a third machine, only for reporting?