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Here you find how to install Microsoft Azure CLI 2.0
Go with your browser to https://aka.ms/devicelogin
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Your are logged in your Azure Subscription via Azure CLI 2.0
With Microsoft Azure CLI 2.0 Feature option you can see the Microsoft Azure Features available to register :
Azure Feature list
You see the Microsoft Azure Preview (Private) Features also 😉
Usage: feature register [options] <providerName> <featureName>
Lot of success with Registering your Azure Feature !
Here you find more information about Microsoft Azure CLI 2.0
Cloud and Datacenter Management Blog 