Currency Revaluation Resource

We are currently handling our currency exchange process through journal entries and are looking to begin using Epicor to handle this. We’re trying to find good documentation on the the currency and G/L Currency revaluation processes. So far we are reading through the built-in application help, but if anyone else has a link to more thorough explanations I’d appreciate it. I’ve looked on the epic web portal but it’s pretty much the same information as the built-in application help.