@Neena Nandakumar - Welcome to Microsoft Q&A and thanks for reaching out to us.
This feature is currently not supported in Azure Managed Grafana.
But if you would like to raise a feature request, please feel free to do so here: https://feedback.azure.com/d365community
Hope this helps. and please feel free to reach out if you have any further questions.
Please don't forget to "Accept as Answer" and click "Yes" if the above response is helpful, so it can be beneficial to the community.