Hi, I know exactly what you are refering to! I have a Star 45acp with the most unusual case kicker. It eliminates the last station. An arm swings through that position indexing the machine and kicking the finished shell out, in one operation. This case kicker eliminates the safety cam, and prohibits use of the last station. I am about to remove this device so I can put tapered crimp die in that last station. This machine has the standard roll crimp which has caused me some problems in a S.A. Army I have with a 45ACP cylinder. Roll crimped ACP's don't work well in cylinders. Must use tapered crimp. Anyway, to respond to your original question, depending on what you are loading, that last station (as far as I know) is used for tapered crimp dies. If your shell does not require a tapered crimp, just plug the hole and use the kicker.
I must mention, There are a lot more qualified people here to reference than myself. I am a beginner! These guys know what they are talking about!
Leatherguy