You can specify the order of your accounts as you want to.
Therefor do the following:
Outbank > List of your accounts > pull the selected account via Drag&Drop to the position you want to
If you want to add an account to another card, please proceed as follows:
Click on the Pencil-symbol in the upper right corner > then click on ‘Edit’ for the card
Select the account at ‘Included Accounts’
Reorder the accounts for the card by tapping on ‘Sorting’