Ghost House Stone Support
The ghost house stone support object is just for decoration to make it look like the wood bridge platforms are being held up.
They are a bit odd in that you can specify them with or without a shadow
they are a bank 1, four byte object 40 | <param>, y, x, 6d.
If param is 0, then the result is a 1 tile tall support with a shadow cast on it from above
If the param is > 0, then it is a support column, param tall, without a shadow.
So to get a support column that is three tiles tall with no shadow: 43, y, x, 6d
To get a support column that is three tiles tall with a shadow: 40, y, x, 6d, 42, y + 1, x, 6d, ie, add two objects to the level.
It's interesting that Nintendo didn't bother with the shadows in the e-reader level Vexing Doors. Perhaps this level was too big to fit on a card so they cut corners.
seems both object id 6d and 62 are the same stone support. Both are used in Vexing Doors. So far I see no difference, but haven't investigated really.