rg-delegated-resource-management - Give customer a dropdown list.

[mlamberty]

Is there a way to edit the template so that the customer can select a Resource Group from a dropdown list when deploying in Azure portal?
I am Attempting to use a deploy to Azure button, when the link is used by the customer the Resource Group field lokks like:
[{"rgName":"test"},{"rgName":"test2"},{"rgName":"test3"}]****