Can you swap currencies on Coinbase?

Can you clarify for me, is it possible to swap or exchange one type of cryptocurrency for another directly on the Coinbase platform? I'm interested in knowing if I can use Coinbase to convert, say, Bitcoin into Ethereum or another altcoin without having to go through a separate exchange process. It would be great if Coinbase offered this service, as it would make managing my crypto portfolio more convenient. Please let me know if this is something that Coinbase currently supports.