Hello. Yes, the roll pin at the serrations portion of the slide is what retains the B-series' firing pin. I've not detailed one of these, but the firing pin (internal) safety will be removed as well. I don't see how this can be too complicated.
I respectfully disagree with others stating that it is OK to dry fire this pistol. I agree that it can be done with no problems on pistols having their firing pins retained by the conventional retaining plates ala Pre-B CZ75s, BHPs, and 1911s, but when they are notched for a pin to retain them, the constant smacking of the pin against the roll pin can lead to breakage of one or the other.
This is why the Pre-Firestar Star pistols such as the Model B, BKM, etc were prone to firing pin breakage if much dry-firing was done. When the firing pin hit and indents a primer, the distance it moves is not enough for the pin to come into contact with the roll pin holding it. When there is no primer to stop the forward motion of the firing pin, it is stopped in its forward motion by the roll pin.
Just use snap caps or fired cases and you'll be OK, but I'd recommend either the snap cap or handloading a dummy round complete with a bullet using silicone or some type of rubber sealant, etc in the primer pocket as primers get dented in quite alot, perhaps to the point that the firing pin could hit the roll pin. Also, this allows you to feed the "round" from the magazine without just dropping it into the chamber such that the extractor has to jump up over it.
Best.