Q: How do I automate trading with markets?
A: Insert items into the blue chest. Any items that complete market trades will be consumed and the output will be in the red chest.
Q: Does it work with mods?
A: Most mods should work with this scenario. However, some massive overhaul mods like pYanodon's can still have problems. You're a brave soul if you even attempt to run that mod with this scenario.