Can the same Demantra Analytical Engines be used for both a test and production environment?

I am currently using a distributed engine setup that consists of six servers. I would like to use all six to run the analytical engine for both my production and test environments, each of which has its own application server and database server. Is it possible to use the same engine servers for both environments, or can they only be used for one or the other? I'm not talking about running a stat forecast concurrently, but rather running a forecast one day in production and then running one the next day in test.