Here is how to move funds:
Open the app and go to the 'Transfers' tab (two arrows going opposite directions).
From there, tap the 'New Transfer' option.
Select the 'From' field with the account you would like to transfer the money from, and then the 'To' field with the account you would like to move the funds to. At the bottom, you'll be able to select the amount you would like to transfer. Hit 'Transfer Money' to review and complete the transfer.