How do I add an account-wide administrator?

I have multiple tenants… as the person who opened the account, I have access to all of them. How do I invite others be account-wide admins for all tenants?

I’m afraid that you’ll have to follow the process described at (Manage Dashboard Access) and add the relevant administrators on each of your tenants as there’s no way to bulk add a new dashboard admin across multiple tenants at once.