Hi  need a guru here.  Trying to make some thank you cards to get printed.

Publisher knows how to make cards, but seems to assume the 1 pice of paper = 1 card.  Using a tri folder (in half down the long edge then in half again).  This allows printing on only one side of the sheet of paper, but is wasteful. I want to use a duplex printer and print on both sides.

Cards are to be A6 sized unfolded.  So on one a4 sheet (landscape) i should be able to get 4 cards. when printing on both sides of the sheet. 

How can I make publisher do this?  I could probably fudge it in word with tables etc, but would like to give publisher a go.