Can you really withdraw bitcoin to the external bitcoin address from waves platform that you have tried just today?
I tried it yesterday and up to now, I can't. The pop up keeps disappearing every time I click "WITHDRAW" button.
Use SEND function, withdraw is still in development. And yes, you can send to any external BTC address, just use SEND button.
I think withdraw would be an option to cash out or similar, for transferring BTC you use SEND.