[PROBLEM] Connecting to hidden wifi

[wahren]

Software
XBian version: 1.1.8
XBMC/Kodi version: 14.2
Overclock settings: Custom (default)

Hardware
Device type and model: Raspberry PI B/512MB
Power supply rating: 5v, 2A
SD card size and make/type: 32GB Samsung miro sd with sd adapter
Network (Ethernet or wireless):WiFi
Connected devices (TV, USB, network storage, ...): PC Monitor

Problem description:
I have bin looking around the forum and the web but not succeeded in finding a way to connect to a hidden wifi.
I have tried the usual way of connecting to a wifi in a debian os.
I have bin in under network in xbian but not bin able to tipe my ssid name.
Is there a way to connect to a hidden wifi? and if so, how?