W580i Sleep Mode Clock Possible?

[SaNdSuKkA]

Add:

<element id="Settings_PartialDisplay_Id">
<label type="name" textid="LS_SLEEP_MODE_CLOCK_TXT" />
<label type="helptext" textid="LS_SLEEP_MODE_CLOCK_HLP" />
<link type="internal" />
</element>

to MENU.ML

To confirm, this will work for W580i? Will this enable any menu options for sleep mode clock? Can anyone confirm this works? So basically this feature is present in the phone but disabled? Why?