Meeting Migration from Shared Mailbox to (New) Microsoft Team Room Resource Calendar Best Practice

Hello All,

I have a large set of older pre-existing Shared Mailboxes that need to have their meetings migrated to a new MTR (Microsoft Teams Room) Resource Calendar. 

I believe this can be done simply by inviting the new room resource to the existing meetings. However, we have a large volume of meetings in each shared mailbox that will need to be migrated. Could someone point me in the direction of the best practice (for example) adding an attendee to all of the individual meetings in a Shared Mailbox Calendar.

These old/new mailboxes are being rebuilt on a one-to-one basis so I'm hoping that we could build some basic scripting automation.

Thanks for your time,

je