How to Switch(control) led on expanded GPIO with PCA9555

Hello friends,

I’m newbie in openHab and i’d add some GPIO, after researching i’ve figure out with PCA9555 we can access to another 16 GPIO in raspberry pi, now i want to control a LED item with switch like this:

Switch LED1{ gpio="pin: N " }

My question is, Is it possible? and if not, how i can control these additonal GPIOs?

Thanks for your time,