Meteor with multiple Mongo’s connection?

We want to use multiple mongo connection (at least 5) (permit user to see data for brand A or brand B, like Stripe for ex.). Workflow is :

1. User choice Brand A
2. All requests, call, publish, etc… pass trough mongo connection for Brand A
3. User choice Brand B
4. Same interfaces tha before, but meteor pass trough mongo connection for Brand B

We make some test with RemoteCollectionDriver, but it’s hard to know exactly where to put this segmentation

Is someone already implemant somethings like that ?