It would be useful to be able to upload only specific properties of some datum to SolarNet, for example when users are billed on a per-property scheme. Imagine a datum collected as

{ i: {watts: 50}, a: { wattHours : 10 }

but when posted to SolarNet only wattHours is sent:

{ a: { wattHours : 10 }

Wild cards might help to make the configuration a bit easier, so you could have configuration like

Main/a/wattHours

to limit source Main to just the a.wattHours property, or

**/wattHours

to limit all sources to just *.wattHours properties (which would effectively be just a.wattHours).