We're trying to set alerts in OMS on custom measurement data that we added to some CustomEvents. We see that the App Insights customDimensions field is brought over by the OMS connector as CustomEventDimensions. However, the customMeasurements field isn't showing up? Why would one of those optional fields be there, but not the other? This doesn't appear to be something that can be configured either. Is it an oversight? Or is something that is coming soon?