Hi,
Copying the Provider is not facilitated currently, because if we copy a Provider all the linked connectors has to copied, might not be worthy some times.
To overcome this, you can create new similar Provider in the destination Project (only few configurations, not a typical task) and copy all the desired connectors from one project to another.
Alternately you can create one generic project with required Providers/Connector and import across the Project(s) as per requirement.
Let us know if this helps.
Regards,
Murali