Board Thread:Plants vs. Zombies 2: It's About Time/@comment-25094668-20140823072731/@comment-24828059-20140912080905

It's easy.

Search for the WW level you want to have different kind of carts. Then look for "RailcartType..railcart_cowboy". Replace "cowboy" with "egypt", "pirate" or "future".

Unfortunately you cannot get the Tutorial and Dark Ages carts. "tutorial" has too many letters and "dark" doesn't apparently exist.