All pictures can be viewed in their original size by Right-Click > Open in New Tab.
1/ From Main Menu, select Account > Accounts & Funds.
2/ For BTC, select the BTC tab. For ETH, select the ETH tab.
3/ Click Fund to see your BTC/ETH address.
Note: The address in the following screenshot is an example and NOT your address.
4/ Follow the instructions on your cryptocurrency wallet to transfer BTC/ETH to your address.
Make sure not to confuse the two addresses (BTC address and ETH address) when you are funding.