You can setup your first daily, weekly, monthly or one-time transfer with Digs during the initial setup of your account. Choose from a suggested transfer amount, or select "other" to setup a custom transfer.
If you aren't ready to setup a transfer during the signup process, you can always do this later by navigating to the banking page and following a similar process. Just make sure you've connected an external bank account to fund your account. This can be done on the same banking page below the transfer area.