Hidden informations in main interface user's ???

[admin@runipsys.]

Hi everybody,
I'd like hidden Informations block in he main interface of my user's space,like on this picture :
http://img247.imageshack.us/my.php?image=pleskwf2.png
Wich and where is the right line to fill in and wich/where file can I modify it ?
Thank's in advance ...