You don’t have to do anything. We’ll continue to automatically set a category for each transaction, then when you spend money on your debit card, the category will be based on the merchant you spent at.
You can see the category in your feed and you can change it in the same way as before in the app or in Online Banking. Tap on a transaction in your feed, then tap on the category and select a different one. At the point of changing a category for a merchant, you’ll be given the option to change the category for this single transaction, or all past and future transactions.