The new resource management is AWESOME! But I have a request.

My use case is as follows: I have different systems with different levels of power in the same resource, so I need to create a different Node Selection set for each one:
- any build agent, 'BUILD_FARM_MEMBER' variable set, platform=Windows, processors=2: provide one resource
- any build agent, 'BUILD_FARM_MEMBER' variable set, platform=Windows, processors=4: provide one resources
- any build agent, 'BUILD_FARM_MEMBER' variable set, platform=Mac, processors=4: provide one resources
- any build agent, 'BUILD_FARM_MEMBER' variable set, platform=Mac, processors=8: provide two resources

I would find it cleaner if I could define one resource mapping to 'any build agent, 'BUILD_FARM_MEMBER' variable set', and then filter it again to identify the processors:
- member of 'BUILD_FARM' resource, platform=Windows, processors=2: provide one resource
- member of 'BUILD_FARM' resource, platform=Windows, processors=4: provide one resources
- member of 'BUILD_FARM' resource, platform=Mac, processors=4: provide one resources
- member of 'BUILD_FARM' resource, platform=Mac, processors=8: provide two resources

That way, if the criteria for being a member of the build farm changes (which it just did today), or if I am using this as a template for a new set of resources I only have to change one entry.
Also it would make the code easier to read.