@Bob DeRmer
Hi Bob, I am not an expert on Azure Support Plans, but reading through the documentation and FAQ I believe you would have the ability to create a support request in all subscription.
https://azure.microsoft.com/en-us/support/faq/#support-overview
How do I authorize another person to create support requests for a particular Azure subscription?
You must be an administrator or owner of the subscription to change access. To do so, assign the support request contributor role to those who want to create and manage support requests for that subscription. Learn more about role assignments.
https://learn.microsoft.com/en-us/azure/azure-portal/supportability/how-to-create-azure-support-request#getting-started
To create a support request, you must have the Owner, Contributor, Support Request Contributor role, or a custom role with Microsoft.Support/, at the subscription level.
To create a support request without a subscription, for example an Azure Active Directory scenario, you must be an Admin.*
Hope this helps! If you need further clarification, I recommend reaching out via a support case to confirm.
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