1) The withdrawal of funds is accessible through Account "Overview" or by clicking on "Withdraw" section of the Dashboard menu. Here is an example how to navigate yourself:
Withdraw button in the Account "Overview":
"Withdraw" section in the Dashboard Menu:
2) Select the Balance you wish to withdraw from and enter the amount of funds. If you have set up a wallet address in the "Wallets" section prior to the withdraw, your external wallet address will appear automatically. The wallet address can also be entered manually.
Click "Withdraw" to receive the selected amount of funds in your external wallet.
The status of your withdrawal can be found in "History" section of the Dashboard Menu. You can keep track of the transaction on a blockchain explorer by clicking on transaction ID.