1. Go to Balances, then Deposit & Withdrawal.
2. Click Withdraw on a chosen currency. This button can be found in the panel (for example, CRD):
3. Enter the amount. Then click Withdraw.
Also, the wallet address is automatically generated as per the whitelisted address per currency.
To whitelist a wallet address, see this guide:
Tracking the Status of Your Withdrawal
For withdrawals that are pending approval, go to Balances, Pending Transfer then Withdrawal.
Approved withdrawals can be seen at Balances, History then Withdrawal.
A confirmed or approved withdrawal looks like this:
... and is reflected in the Withdrawal History: