This has been noted as a feature request to add sorting capabilities (or the ability to manually sort) deployments in the account portal. This would help prevent accidental selection of the wrong instance when managing multiple FusionAuth Cloud deployments.

In the meantime, extra care should be taken when selecting deployments from the list to ensure you're working with the correct instance. You can use the Rename feature (available in the Action dropdown menu for each deployment) to give your deployments descriptive names that help distinguish between different products or environments.