If i am understand you wont to change first element to BlueTooth.
You need write in your menu.ml file:
<?xml version="1.0" encoding ="UTF-8" standalone="yes"?>
<mml ver="1.0">
<menu id="Wilma_Generic_Id">
<element id="MainMenu">
<menu id="MainMenu" layout="DesktopTopMenuGFX2">>
<accelerator>MapToKeypad</accelerator>
<highlight>4</highlight>
<!-- Desktop Element 1 using DESKTOP_HOOK_1 -->
<element id="BlueTooth_Settings">
<label type="name" textid="MENU_BLUETOOTH_TXT"/>
<icon pos="unselected" source="file">icon1_unselected.png</icon>
<icon pos="selected" source="file">icon1_selected.png</icon>
<icon pos="shortcut" source="internal">RN_SHORTCUT_LIST_BT_ICN</icon>
<menu id="Menu_BlueTooth_Settings">
<label type="title" textid="MENU_BLUETOOTH_TXT"/>
<element id="MenuItem_Bt_Activation">
<label type="helptext" textid="BT_ACTIVATION_HLP"/>
<link type="internal"/>
</element>
<element id="MenuItem_Bt_Visibility">
<label type="name" textid="BT_VISIBILITY_TXT"/>
<label type="helptext" textid="BT_VISIBILITY_HLP"/>
<link type="internal"/>
</element>
<element id="MenuItem_Bt_MyDevices">
<label type="name" textid="BT_MY_DEVICES_TXT"/>
<label type="helptext" textid="BT_MY_DEVICES_HLP"/>
<link type="internal"/>
</element>
<element id="MenuItem_Bt_Connected">
<label type="name" textid="BT_LIST_OF_CON_DEVICES_TXT"/>
<label type="helptext" textid="BT_LIST_OF_CON_DEVICES_HLP"/>
<link type="internal"/>
</element>
<element id="MenuItem_Bt_Handsfree">
<label type="name" textid="BT_HANDSFREE_TXT"/>
<label type="helptext" textid="BT_HANDSFREE_MENU_HLP"/>
<link type="internal"/>
</element>
<element id="MenuItem_Bt_Internet">
<label type="name" textid="MENU_LC_BT_INTERNET_TXT"/>
<label type="helptext" textid="MENU_LC_BT_INTERNET_HLP"/>
<link type="internal"/>
</element>
<element id="MenuItem_Bt_Multilink">
<label type="name" textid="BT_POWER_SAVE_TXT"/>
<label type="helptext" textid="BT_POWERSAVE_HLP"/>
<link type="internal"/>
</element>
<element id="MenuItem_Bt_PhoneName">
<label type="name" textid="BT_PHONE_NAME_TXT"/>
<label type="helptext" textid="BT_PHONE_NAME_HLP"/>
<link type="internal"/>
</element>
</menu>
</element>
The second element is ok.