Thanks for this thread. Hopefully with 1.0 approaching, we'll see some official LUA documentation once again. also These aren't removed. They're renamed. - pressurizedbeam is now pressurisedbeam - pressurizedgirder is now pressurisedgirder - pressurizedplatform is now pressurisedplatform It does seem an odd renaming, but apparently a valid spelling. steelplatform is now tungstenplatform pressurizedsteel is now pressuriseddurasteel The brains though do appear to be gone, unless I'm missing them.