I copied my career park into it but can't figure out at all how to expand the park boundaries so none of the rollercoasters I've downloaded off Steam will even fit in it. Kind of disappointed with this, was hoping for something more like RollerCoaster Tycoon 1-3 quality but it's pretty lacking. In RCT you used to be able to build a career park and then slowly unlock all the rides, but having them be locked to just a few, and then sandbox basically giving you a spoiler of the end kind of ruined it for me. I like NOT knowing what rides I can play with and unlocking them as I go, but to have to use sandbox to just build my own park just feels like cheating and a waste.