While waiting in a queue at the checkout I sometimes "need" to change the account which is connected at the card/Tap&Pay. Currently you need to enter the app, go to cards and change the account. While doing that you need to get past lots of confidential information like the balance on your accounts and so on.
It would be nice if there was a small widget app (like the Tap&Pay widget) where you could only change the account connected to the card without having to actually see the balance on all accounts. Just to prevent other people in the queue from snooping.
Perhaps a pin change could be done in this widget too?