It is possible to add more than one OneDrive provider account to your SME account.
You can add an additional OneDrive account by adding the provider and authenticating with a different set of OneDrive credentials.https://storagemadeeasy.com/wiki/cloudproviders/onedrive/
Thanks. BUT if I try doing that it does not ever prompt me for new username or credentials. It goes through to MS and logs me in as the first free MS account and shows me the allow access prompt again. Or under the windows cloud tool it says that the same cloud provider is already added as either a primary or backup provider, and I have to remove that before I can add it again.
But I don't want to add it 'again' I want to add it using 'another' pair of credentials.