DDR3 A and DDR3 B - Cyclone V Dev Kit

Hi,

I'm trying to deal with both DDR3 A and DDR3 B of the Cyclone V Dev Kit.
Has anyone already tried to use both DDR3 A and B in the same design ?
I met a problem to find out exact pins for OCT signals.
(only pin_ak13, wheras I need two pins).

Could you help me please ?

Thanks,

AC.