Multiple Cloud Storage Providers?

Hi all,

Thinking about upgrading to Plex Pass primarily to make use of the Plex Cloud and Sync features, but I have a question. How many cloud storage providers can you add? I have an Office home subscription which gives me up to 5TB of storage across 5 accounts. I have too much media for a single account so I’d like to separate my media between two accounts and access them both in Plex Cloud. Is that possible?

Thanks.