The stock PBG 5-way has 7 lugs/pads, set up as 1 2 3 (4) 5 6 7, where 4 is the common lug for both sides/halves. This works fine for ‘standard’ Strat style wiring, but as it has a single shared common it can’t do much more than that on it’s own. The CRL/Grigsby type lever switches that you see in diagrams have three lugs plus a common on each side, completely separate from each other (ie. 2 ‘poles’), which allows some additional wiring options. Then there’s the ‘4 pole’ super-switches which have four separate banks of x lugs plus a common.

To map the PBG switch to a CRL style layout, it would be like:

.1...|..(4)
.2...|...5
.3...|...6
(4)..|...7

If you get what I mean.