Like I said before, I looked through all the unused objects. Almost all are either empty or are some modifiers that I couldn't recognise. But I found one thing. No, not the Blue Ghost. I mean event 243, the Airboard that doesn't self-respawn. Normal Airboard respawns even if we don't choose the event generating option. This one doesn't. Don't know what can we use it for, but if you ever wanted that, it's here. Just find the line in your JCS.ini starting with 243= and change it as you wish, like:

243=Airboard II |+|Object |Air |Board2