When building out our applications, we can't seem to figure out a way to incorporate sub-tiers into our resource hierarchies. For example, if we were monitoring an application that was hosting both a production and test environment it would make sense for each of those tiers to have their sub-tiers of related resources (say a database tier, a web tier, etc). But I can't seem to figure out a way to create those tiers without splitting the two environments into different applications.
Any thoughts?