Missing documentation on accessing multiple storage accounts with managed identity

It is very difficult (impossible for me) to figure out if multiple storage accounts can be accessed from an azure function using managed identity.

Despite following the documentation I have been able to find, I still get a 403 when trying to access the storage account from an azure function with the documented setup for RBAC. As [per the docs](https://learn.microsoft.com/en-us/azure/azure-functions/functions-identity-based-connections-tutorial#use-managed-identity-for-azurewebjobsstorage) the IAM on storage accounts are set to Blob Storage Owner / Reader for the function.

Public network access is enabled from all networks to the storage account to exclude this as an issue.

I have not been able to find a tutorial or documentation of granting access to multiple storage accounts. The only hands on guide I could find is [limited to the default function storage account](https://learn.microsoft.com/en-us/azure/azure-functions/functions-identity-based-connections-tutorial#use-managed-identity-for-azurewebjobsstorage) requiring an explicit postfix on the default storage naming convention. (I did a brute force experiment with the same postfix naming convention on the other storage accounts with no luck)

- If granting access to multiple storage accounts with managed identity is not possible this should be documented.
- If it is possible to grant access to multiple storage accounts with managed identity a functional guide is required, as the current documentation seems inadequate.

I have raised a question on [SO](https://stackoverflow.com/questions/77082120/how-do-i-give-an-azure-function-access-to-multiple-blob-storage-accounts-wit) with more details.