Go to "Transfers" section at the bottom of the main screen. If you wish to send money to someone not registered yet in your account history, please add a new beneficiary choosing the option: "To a new contact" or choose a beneficiary that is already available in the drop down list. If you select "Between my accounts", you can transfer money between your own accounts in our bank.

See also the article showing the screens in the application step by step:

How to make a bank transfer from Aion?