Thermal Energy Storage: missing features in OpenStudio

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thermal storage, solar hot water and heat recovery in my view are important applications. Testing what is implemented in OpenStudio so far, however, with WaterHeater:Mixed, the following interfaces seem to be missing:

+ Source Side Inlet Node Name
+ Source Side Outlet Node Name

I have not found any means in OpenStudio to specify these nodes.

For thermal storage applications, more objects in OpenStudio would be desirable, such as:

+WaterHeater:Stratified
+WaterHeater:HeatPump
+ThermalStorage:Ice:Simple
+ThermalStorage:Ice:Detailed
+TemperingValve

Are there any plans to include more of these objects in future releases ? What's the support for these features among OpenStudio users ?