[Xperia Arc Themes and Apps] Saqib Nazm:
Its related to user-permission I think. Check AndroidManifest of SemcSettings

Mine Looks like this with only three options

?xml version="1.0" encoding="utf-8"?>
<manifest android:versionCode="1" android:versionName="1.0" package="com.sonyericsson.settings"
xmlns:android="http://schemas.android.com/apk/res/android">
<permission android:label="@string/permlab_settings" android:name="com.sonyericsson.permission.SETTINGS" android:protectionLevel="signatureOrSystem" android:description="@string/permdesc_settings" />
<uses-permission android:name="com.sonyericsson.timescape.permission.TIMESCAPE_SETTINGS" />
[COLOR="Red"]<uses-permission android:name="com.sonyericsson.r2r.client.permission.START_R2R" />[/COLOR]
<uses-permission android:name="com.sonyericsson.permission.SETTINGS" />
<application android:theme="@style/SEMCSettingsTheme" android:label="@string/app_name" android:icon="@mipmap/ic_launcher_settings" android:hardwareAccelerated="false">
<activity android:label="@string/sonyericsson_settings_title" android:name=".ApplicationSettingsActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.MONKEY" />
</intent-filter>
<intent-filter>
<action android:name="com.android.settings.MANUFACTURER_APPLICATION_SETTING" />
</intent-filter>
<meta-data android:name="com.android.settings.title" android:resource="@string/sonyericsson_settings_title" />
</activity>
</application>
</manifest>

The red colored line is related to Ready2Run apk which is related to internet settings. & see it's AndroidManifest

<?xml version="1.0" encoding="utf-8"?>
<manifest android:versionCode="4" android:versionName="2.1.0" package="com.sonyericsson.r2r.client"
xmlns:android="http://schemas.android.com/apk/res/android">
<application android:theme="@style/ApplicationTheme" android:label="@string/r2r_strings_app_name_txt">
<receiver android:name=".main.R2REntry" android:permission="com.sonyericsson.r2r.permission.PERMISSION_START_R2R" android:exported="true">
<intent-filter>
<category android:name="android.intent.category.DEFAULT" />
<action android:name="com.sonyericsson.r2r.client.intent.action.ACTION_R2R_START" />
</intent-filter>
</receiver>
<activity android:name=".main.LegacyR2REntry" android:permission="com.sonyericsson.r2r.client.permission.START_R2R" android:exported="true">
<intent-filter>
<category android:name="android.intent.category.DEFAULT" />
<action android:name="com.sonyericsson.r2r.client.intent.action.START_R2R" />
</intent-filter>
</activity>
<activity android:name=".main.ui.StartedByUserActivity" android:permission="[COLOR="Red"]com.sonyericsson.r2r.client.permission.START_R2R[/COLOR]" android:exported="true">
<intent-filter>
<category android:name="android.intent.category.DEFAULT" />
<action android:name="com.sonyericsson.intent.action.GET_PREFERENCE" />
</intent-filter>
<meta-data android:name="com.sonyericsson.preference.title" android:resource="@string/r2r_settings_download_title_txt" />
<meta-data android:name="com.sonyericsson.preference.summary" android:resource="@string/r2r_settings_download_summary_txt" />
</activity>
<receiver android:name=".boot.BootReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<service android:name=".main.R2RService" android:exported="false" />
<service android:name=".boot.BootIntentService" android:exported="false" />
<activity android:name=".main.ui.OperatorListActivity" android:exported="false" android:configChanges="orientation" />
<provider android:name=".contentprovider.R2RContentProvider" android:permission="com.sonyericsson.r2r.client.permission.DOWNLOAD_SETTINGS" android:exported="true" android:authorities="com.sonyericsson.r2r.client" />
<activity android:name=".notifications.ErrorActivity" android:exported="false" android:configChanges="orientation" />
<activity android:name=".main.ui.CostConfirmationActivity" android:exported="false" android:configChanges="orientation" />
<uses-library android:name="com.sonyericsson.uxpres" />
</application>
<uses-permission android:name="android.permission.WRITE_APN_SETTINGS" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_SETTINGS" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="com.sonyericsson.r2r.client.permission.START_R2R" />
<uses-permission android:name="com.sonyericsson.r2r.client.permission.DOWNLOAD_SETTINGS" />
<uses-permission android:name="com.sonyericsson.permission.SETTINGS" />
<uses-permission android:name="com.sonyericsson.r2r.permission.PERMISSION_START_R2R" />
<uses-permission android:name="com.sonyericsson.r2r.permission.PERMISSION_R2R_RECEIVE_RESULT" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<permission android:label="@string/r2r_permlab_start_r2r" android:name="com.sonyericsson.r2r.client.permission.START_R2R" android:protectionLevel="signatureOrSystem" android:description="@string/r2r_permdesc_start_r2r" />
<permission android:label="@string/r2r_permlab_download_settings" android:name="com.sonyericsson.r2r.client.permission.DOWNLOAD_SETTINGS" android:protectionLevel="signatureOrSystem" android:description="@string/r2r_permdesc_download_settings" />
<permission android:label="@string/r2r_permlab_start_r2r" android:name="com.sonyericsson.r2r.permission.PERMISSION_START_R2R" android:protectionLevel="signatureOrSystem" android:description="@string/r2r_permdesc_start_r2r" />
<permission android:label="@string/r2r_permlab_r2r_receive_result" android:name="com.sonyericsson.r2r.permission.PERMISSION_R2R_RECEIVE_RESULT" android:protectionLevel="signatureOrSystem" android:description="@string/r2r_permdesc_receive_result" />
</manifest>

So yes you need to find the correct user-permission & add it like this