OpenStudio: Adding Coil:Cooling:DX:VariableSpeed as a component

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Hi,

Actually, I am currently working on a model in OpenStudioI, while the selected system is "Packaged Rooftop Heat Pump". Meantime, I was wondering if anyone could assist and let me know how to change the coil type from the default (Coil:Cooling:DX:SingleSpeed) to Coil:Cooling:DX:VariableSpeed into my OpenStudio model.

P.S.1: I know I can add such an object into my idf file, but I was wondering if I can have it in the OS model. P.S.2: I already checked my OS library and was not able to find such a component there. In addition, I checked Online BCL and didn't find it as a component or either a measure. is there anywhere else that I am missing to check?

Thanks, Mohammad