If you have a Booklet making finisher (Professional Finisher) it will have 3 output trays. Top, Stacker and Booklet maker.
It will look the same in the driver
It can't fold any paper, just some, and all have to be fed Short Edge Feed (Landscape in the tray), this is called Fasten mode and is here in the driver
If your driver is for the older style, it will be here:
Then scroll down a bit
If the Fiery is a 260, and the copier is a 242/252/260, there was a D-Finisher with actual C-Fold,Z-Fold half fold. That would be under finishing (Still only works on SEF paper)
Also, you will almost always find that the fold options are greyed out and look to be not selectable, this is not the case with EFI Fiery, it just means a conflict will occur, and it will usually be able to fix it, so choose it anyway
In my case, by choosing C-fold, there is a conflict because I have it set to Letter LEF and to Offset the output, it tells me that, and shuts off Offset as well as switching it from LEF paper to SEF
And at the 242/252/260 model copiers, it is here (I can't get to a 250 model to check)
