Isn't it excellent that you can actually create a resource plan for your project now. This will make resource planning much easier. I wonder why you can only plan for "real" resources and not for generic resources? This is most important if you have a large project and only know that "in 6 month time i need 20 Developers".
Resource management is hard as it is, it doesn't matter if you have tools or not, but at least if I can plan for generic resources as well, I can create a picture of what resources I require in the future.