Thanks for sending these through! This will be really helpful :)
And yes, the Move this action defaults to selecting the Top of a Zone when you move a Card, so you can simply say:
<Card Actions> Move this to Deck </Card Actions>
This will make the Card will go to the top of the Deck. So long as that Deck is not shuffled, the order of the cards in the Zone should be maintained. If you have the Card Action Pack 2 plugin, you can go further by specifying Bottom, Middle and Random as positions in the target Zone to Move a Card to.