Is there anyone who made a extremely large object?

[CHboom!]

Trying to build a functional skyscrapper, but there's a height limitation - I guess it's like 120m.

So I planned to make a object(32m x 32m x 270m) and put it on the roof,

but whenever I put wso file into tsr workshop, then it says,

 

"Your object is taller than the standard wall height. If this object is placed on a wall, it could cause game errors. Would you like Workshop to correct the bounding box for you to prevent this? (your mesh height will not be changed)"

 

Not sure what to choose in this part. 

 

After I choose 'yes' then error message comes out "D3DERR_INVALIDCALL Invalid call (-200550516)", it refuses to work.

 

Is there anyone has a solution on it?

If possible, I'd like to put night light on it, but proccess looks soooo difficult.