Is it possible to send bitcoin to my account on the DEX and buy, say, ETH and withdraw ETH to an ETH wallet? All the guides I read show how to buy bitcoin with BTS on the bitshares DEX. Also, if I have open.ETH and I withdraw it to an ETH wallet, does the balance of open.ETH translate directly to ETH in my ETH wallet? I understand that BTS is the underlying messenger (nothing moves on the DEX besides BTS), which is why I'm so confused. Thanks.