Please. please. please make an option next to every payment method a customer has that says "make default" the current process for customers to change there default card and delete old ones is not intuitive at all, too many steps and my customers have constant issues with this. Even after adding a new card and changing the default payment method on their subscriptions the old payment method cannot be deleted from their account. it should be as easy as clicking a button next to whichever card they want to choose default and to delete cards.