JP-15. Is it possible to split coils in other switch positions?

I have a JP-15 and I was wondering about how great would be if was possible to use the push/pull knob for:

a) split the coils of neck and bridge pickup as well;

b) create others combinations between pickups coils, in order to emulate strato switchs 2 and 4.

Is there a way to do that?

Thank you very much!