Stack Magic Tile for Mercury.

Hey guys,
A few weeks I found an old emulator (Plus R2) with the stack magic tile working. But the additional in this emulator, is because the stack magic tile ''ignores'' the height of any furniture. This is why I am here.
It works cool in mercury emulator, but it does not ignore the height, and I think this is the best part of this tile.
Anyway, I tried to convert the code from Plus R2, to make it work in Mercury, but I get a lot of errors.
I am asking if someone who knows better about codify could give me this part of the entire code, the part when the stack magic tile ignores the height of a furniture.