KF can the halloween sideshow zeds be turned on?

so with the new update you can turn on all event zeds as seen here.



Valid inputs for this field are:

ET_None - Standard Specimens

ET_SummerSideshow - Summer Specimens

ET_HillbillyHorror - Halloween Specimens

ET_TwistedChristmas - Christmas Specimens



but does this also mean you can activate the halloween sideshow (2011 halloween zeds)?

considering they are not in the list but they did apear in the trailer.