How do I create a smooth scrolling slide transition in new Keynote?

In previous versions of Keynote it was possible to create a scrolling transition between slides. Either from left to right, or up and down.

Now the closest thing seems to be "move" and what it does is create an effect where one slide slides over the other to reveal the next one. This does not create the smooth effect I am trying to get.

Anyone know how I can hack this or recreate this in the latest version of Keynote?