Unlimited merge glitch with backlot DLC how?

[esouthy]

I'm trying to make a new replica of Vans Orlando on the backlot dlc but I tried unlimited merge and it only works on the parks I've unlocked in offline mode. The game wants to check online for my dlc and it won't let me access the dlc parks.... btw my 360 broke a few years ago, finally got a new one, but I have to do the entire career mode over. What do I do to make backlot work with merge glitch? o.0

oh and another thing, the park browser says it's offline??