Longhorn with multiple StorageClasses

I have setup longhorn to provide storage volumes from a set of disks that contain ext4 file systems.

I need to create a MongoDB cluster and have read that it performs better on disks that contain xfs file systems.

Can I create a new storage class for longhorn that uses the xfs disks? Is this the right way to create storage volumes that are on a different file system?

I can not find anything in the docs that explain how to accomplish this? Does anyone know if any exist?

Thanks for the help.