You can add a new currency by clicking the 'ADD NEW CURRENCY' button on the Home screen.
You will need to create a new wallet of the type selected by the dropdown box. Once that's done you will be taken to your new Currency Vault. Here you can see all your transaction details and wallets in one place.
For example, here we see a BTC Vault:
To get started you will need some crypto which you can transfer from an crypto exchange or from some other wallet software.