Feature Request Excalidraw+ - Allow a workspace or collection between different billing accounts

[bquinart]

My understanding of the billing setup today in Excalidraw+, assumes there is one entity billed for all users in the workspace.
This makes sense for scenario where a company pays for all the users.

However, there is scenario where Excalidraw+ is used by different individuals who want to collaborate. But paid respectively by all of them. It would be nice in such a scenario, as those people are working together often to either have a common workspace or at least a common collection.
So that members of that workspace or collection can see all the scenes in there.
Even if they are not all on same billing account. Just Excalidraw+ customers.