Yes. On the Wallet screen, select the card you would like to make your favorite. Click on Card Settings on your Wallet screen. Click on the Set As Favorite Card icon on the Card Setting screen, then follow the step-by-step instructions for the Set As Favorite Card option.
Please Note: The heart in the top right corner of a card on your wallet screen indicates your favorite card. Your favorite card will always be the first card on your Wallet screen upon logging in, and any future P2P transfers will be loaded onto this card.