Korg Z1 user presets areas on PCMCIA card

[street]

Hi,

I read this online:

The Z1 offers 256 internal slots for single sounds (called programs), arranged in two banks, A and B. Inserting a PC card, it can make two more banks directly accessible via a dedicated button.

The card provides much more space (4MB in total), and can host up to 15 so called card areas. Each card area hosts two banks. A card area switch hidden in the global menu lets the user define which of the 15 card areas is accessible directly from the synths front panel. This means that 512 sound programs are directly accessible (256 internal, one card area), while the card can host 3584 further sounds (14 remaining banks).
This means it is possible to have up to 4096 sounds available in the synth.

Any idea how to operate this on the Z1? How do you "install" an "area" on the PCMCIA card?
Actually, which PCMCIA card should work with the Z1?

Thanks.