I have a few times played a card and then thought it would have been better to have held the card in reserve. I would like to unplay the card in these situations. However, I do not see any means to unplay a card.

1) Is there a way to unplay a card once played?
2) If there is not a way would it be a desirable option?

If you haven't committed your orders yet, then you can delete the order to play the card on the order list.

Click on the order in the order list and you will get a window with up, down, and delete buttons. It took me a while to realize this was there too. Very handy.

Thank you both for the reply