diff --git a/app/src/main/java/ryey/easer/Utils.java b/app/src/main/java/ryey/easer/Utils.java
index 2fe51c39..3ec971a2 100644
--- a/app/src/main/java/ryey/easer/Utils.java
+++ b/app/src/main/java/ryey/easer/Utils.java
@@ -9,8 +9,11 @@
 import android.widget.Toast;
 
 import java.text.ParseException;
+import java.text.SimpleDateFormat;
 import java.util.ArrayList;
+import java.util.Calendar;
 import java.util.Collection;
+import java.util.Date;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
@@ -112,4 +115,20 @@ public static int checkedIndexFirst(CompoundButton[] buttons) {
         }
         throw new IllegalStateException("At least one button should be checked");
     }
+
+    private static final String F_DATE = "%DATE%";
+    private static final String F_TIME = "%TIME%";
+
+    private static final SimpleDateFormat sdf_date = new SimpleDateFormat("yyyy-MM-DD", Locale.US);
+    private static final SimpleDateFormat sdf_time = new SimpleDateFormat("HH-mm-ss", Locale.US);
+
+    public static String format(String format_string) {
+        if (format_string == null)
+            return null;
+        Date now = Calendar.getInstance().getTime();
+        String res = format_string;
+        res = res.replaceAll(F_DATE, sdf_date.format(now));
+        res = res.replaceAll(F_TIME, sdf_time.format(now));
+        return res;
+    }
 }
diff --git a/app/src/main/java/ryey/easer/core/EHService.java b/app/src/main/java/ryey/easer/core/EHService.java
index 403798fa..289f3b72 100644
--- a/app/src/main/java/ryey/easer/core/EHService.java
+++ b/app/src/main/java/ryey/easer/core/EHService.java
@@ -128,8 +128,10 @@ public void onCreate() {
         filter.addAction(ProfileLoaderIntentService.ACTION_PROFILE_LOADED);
         registerReceiver(mReceiver, filter);
         reloadTriggers();
-        for (Lotus lotus : mLotusArray) {
-            lotus.check();
+        if (SettingsHelper.passiveMode(this)) {
+            for (Lotus lotus : mLotusArray) {
+                lotus.check();
+            }
         }
         Logger.i("EHService created");
     }
diff --git a/app/src/main/java/ryey/easer/core/Lotus.java b/app/src/main/java/ryey/easer/core/Lotus.java
index bf97ec43..a3f756d2 100644
--- a/app/src/main/java/ryey/easer/core/Lotus.java
+++ b/app/src/main/java/ryey/easer/core/Lotus.java
@@ -252,7 +252,9 @@ private void triggerAndPromote() {
                     Lotus subLotus = new Lotus(context, sub, executorService);
                     subs.add(subLotus);
                     subLotus.listen();
-                    subLotus.check();
+                    if (SettingsHelper.passiveMode(context)) {
+                        subLotus.check();
+                    }
                 }
             }
         }
diff --git a/app/src/main/java/ryey/easer/core/SettingsHelper.java b/app/src/main/java/ryey/easer/core/SettingsHelper.java
index f9d7d816..901b6942 100644
--- a/app/src/main/java/ryey/easer/core/SettingsHelper.java
+++ b/app/src/main/java/ryey/easer/core/SettingsHelper.java
@@ -13,4 +13,9 @@ public static int coolDownInterval(Context context) {
         return Integer.parseInt(interval_pref);
     }
 
+    public static boolean passiveMode(Context context) {
+        return PreferenceManager.getDefaultSharedPreferences(context)
+                .getBoolean(context.getString(R.string.key_pref_passive_mode), true);
+    }
+
 }
diff --git a/app/src/main/java/ryey/easer/plugins/operation/alarm/AlarmLoader.java b/app/src/main/java/ryey/easer/plugins/operation/alarm/AlarmLoader.java
index 14be180b..8c4afc55 100644
--- a/app/src/main/java/ryey/easer/plugins/operation/alarm/AlarmLoader.java
+++ b/app/src/main/java/ryey/easer/plugins/operation/alarm/AlarmLoader.java
@@ -27,6 +27,7 @@
 
 import java.util.Calendar;
 
+import ryey.easer.Utils;
 import ryey.easer.commons.plugindef.ValidData;
 import ryey.easer.commons.plugindef.operationplugin.OperationLoader;
 
@@ -54,7 +55,7 @@ public boolean load(@ValidData @NonNull AlarmOperationData data) {
         }
         intent.putExtra(AlarmClock.EXTRA_HOUR, hour);
         intent.putExtra(AlarmClock.EXTRA_MINUTES, minute);
-        intent.putExtra(AlarmClock.EXTRA_MESSAGE, data.message);
+        intent.putExtra(AlarmClock.EXTRA_MESSAGE, Utils.format(data.message));
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
             intent.putExtra(AlarmClock.EXTRA_VIBRATE, true);
         }
diff --git a/app/src/main/java/ryey/easer/plugins/operation/broadcast/BroadcastLoader.java b/app/src/main/java/ryey/easer/plugins/operation/broadcast/BroadcastLoader.java
index cc7c1e33..f706a15f 100644
--- a/app/src/main/java/ryey/easer/plugins/operation/broadcast/BroadcastLoader.java
+++ b/app/src/main/java/ryey/easer/plugins/operation/broadcast/BroadcastLoader.java
@@ -21,11 +21,14 @@
 
 import android.content.Context;
 import android.content.Intent;
+import android.net.Uri;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
 
 import com.orhanobut.logger.Logger;
 
+import java.util.ArrayList;
+
 import ryey.easer.Utils;
 import ryey.easer.commons.plugindef.ValidData;
 import ryey.easer.commons.plugindef.operationplugin.OperationLoader;
@@ -37,7 +40,7 @@ public BroadcastLoader(Context context) {
 
     @Override
     public boolean load(@ValidData @NonNull BroadcastOperationData data) {
-        IntentData iData = data.data;
+        IntentData iData = preprocess(data.data);
         Intent intent = new Intent();
         intent.setAction(iData.action);
         if (iData.category != null)
@@ -70,9 +73,30 @@ public boolean load(@ValidData @NonNull BroadcastOperationData data) {
             }
             intent.putExtras(extras);
         }
-        Logger.d(intent);
         context.sendBroadcast(intent);
-        Logger.d("broadcast has been sent [%s]", iData);
         return true;
     }
+
+    private static IntentData preprocess(IntentData data) {
+        IntentData res = new IntentData();
+        res.action = Utils.format(data.action);
+        if (data.category != null) {
+            res.category = new ArrayList<>(data.category.size());
+            for (String c : data.category) {
+                res.category.add(Utils.format(c));
+            }
+        }
+        res.type = Utils.format(data.type);
+        res.data = Uri.parse(Utils.format(data.data.getPath()));
+        if (data.extras != null) {
+            res.extras = new ArrayList<>(data.extras.size());
+            for (IntentData.ExtraItem extra : data.extras) {
+                IntentData.ExtraItem p_extra = new IntentData.ExtraItem();
+                p_extra.key = Utils.format(extra.key);
+                p_extra.value = Utils.format(extra.value);
+                res.extras.add(p_extra);
+            }
+        }
+        return res;
+    }
 }
diff --git a/app/src/main/java/ryey/easer/plugins/operation/command/CommandLoader.java b/app/src/main/java/ryey/easer/plugins/operation/command/CommandLoader.java
index e036c89b..08050fd5 100644
--- a/app/src/main/java/ryey/easer/plugins/operation/command/CommandLoader.java
+++ b/app/src/main/java/ryey/easer/plugins/operation/command/CommandLoader.java
@@ -26,6 +26,7 @@
 
 import java.io.IOException;
 
+import ryey.easer.Utils;
 import ryey.easer.commons.plugindef.ValidData;
 import ryey.easer.commons.plugindef.operationplugin.OperationLoader;
 import ryey.easer.plugins.reusable.PluginHelper;
@@ -38,7 +39,7 @@ public CommandLoader(Context context) {
     @Override
     public boolean load(@ValidData @NonNull CommandOperationData data) {
         boolean success = true;
-        String text = data.get();
+        String text = Utils.format(data.get());
         String []commands = text.split("\n");
         Process process;
         try {
diff --git a/app/src/main/java/ryey/easer/plugins/operation/send_notification/SendNotificationLoader.java b/app/src/main/java/ryey/easer/plugins/operation/send_notification/SendNotificationLoader.java
index 9ef75f62..83168be4 100644
--- a/app/src/main/java/ryey/easer/plugins/operation/send_notification/SendNotificationLoader.java
+++ b/app/src/main/java/ryey/easer/plugins/operation/send_notification/SendNotificationLoader.java
@@ -28,6 +28,7 @@
 import java.util.concurrent.ThreadLocalRandom;
 
 import ryey.easer.R;
+import ryey.easer.Utils;
 import ryey.easer.commons.plugindef.ValidData;
 import ryey.easer.commons.plugindef.operationplugin.OperationLoader;
 
@@ -50,8 +51,8 @@ public boolean load(@ValidData @NonNull SendNotificationOperationData data) {
 
         NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
         builder.setSmallIcon(R.mipmap.ic_launcher);
-        builder.setContentTitle(data.title);
-        builder.setContentText(data.content);
+        builder.setContentTitle(Utils.format(data.title));
+        builder.setContentText(Utils.format(data.content));
 
         notificationManager.notify(NOTIFICATION_ID, builder.build());
         NOTIFICATION_ID++;
diff --git a/app/src/main/java/ryey/easer/plugins/operation/send_sms/SmsLoader.java b/app/src/main/java/ryey/easer/plugins/operation/send_sms/SmsLoader.java
index c660ba80..4929029b 100644
--- a/app/src/main/java/ryey/easer/plugins/operation/send_sms/SmsLoader.java
+++ b/app/src/main/java/ryey/easer/plugins/operation/send_sms/SmsLoader.java
@@ -23,6 +23,7 @@
 import android.support.annotation.NonNull;
 import android.telephony.SmsManager;
 
+import ryey.easer.Utils;
 import ryey.easer.commons.plugindef.ValidData;
 import ryey.easer.commons.plugindef.operationplugin.OperationLoader;
 
@@ -33,8 +34,12 @@ public SmsLoader(Context context) {
 
     @Override
     public boolean load(@ValidData @NonNull SmsOperationData data) {
+        String destination = data.destination;
+        String content = Utils.format(data.content);
         SmsManager smsManager = SmsManager.getDefault();
-        smsManager.sendTextMessage(data.destination, null, data.content, null, null);
+        if (smsManager == null)
+            return false;
+        smsManager.sendTextMessage(destination, null, content, null, null);
         return true;
     }
 }
diff --git a/app/src/main/res/values-zh/strings.xml b/app/src/main/res/values-zh/strings.xml
index 237f782f..fbbeea37 100644
--- a/app/src/main/res/values-zh/strings.xml
+++ b/app/src/main/res/values-zh/strings.xml
@@ -85,5 +85,8 @@
     <string name="text_reverse_desc">反轉情境</string>
     <string name="text_persistent">固定滿足態</string>
     <string name="text_volatile">不固定滿足態</string>
+    <string name="pref_passive_mode_title">被動模式</string>
+    <string name="pref_passive_mode_summary_off">當激活事件時，檢查當前狀態</string>
+    <string name="pref_passive_mode_summary_on">僅監聽事件；事件激活時不檢查</string>
 
 </resources>
diff --git a/app/src/main/res/values/keys.xml b/app/src/main/res/values/keys.xml
index 569b19c3..3bf08a91 100644
--- a/app/src/main/res/values/keys.xml
+++ b/app/src/main/res/values/keys.xml
@@ -8,6 +8,7 @@
     <string name="key_pref_version" translatable="false">preference_version</string>
     <string name="key_pref_use_root" translatable="false">preference_use_root</string>
     <string name="key_pref_cooldown" translatable="false">preference_cool_down_time</string>
+    <string name="key_pref_passive_mode" translatable="false">preference_passive_mode</string>
     <string name="key_pref_plugins" translatable="false">preference_plugins</string>
     <string name="key_pref_enabled_operation_plugins" translatable="false">preference_enabled_operation_plugins</string>
     <string name="key_pref_enabled_event_plugins" translatable="false">preference_enabled_event_plugins</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index b8ac1135..455f727f 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -102,6 +102,10 @@ Reminder: Easer is still in development. It may contain bugs and the UI definite
     <string name="pref_cooldown_summary">Interval between two triggers of the same event</string>
     <string name="cooldown_time_illformed">The number must not be lower than 0 and not too large to fit in a integer</string>
 
+    <string name="pref_passive_mode_title">Passive mode</string>
+    <string name="pref_passive_mode_summary_on">Listen to Event; no checking when activated</string>
+    <string name="pref_passive_mode_summary_off">Check the satisfaction state when (each) Event is activated</string>
+
     <string name="pref_enabled_plugins_title">Enabled plugins</string>
     <string name="pref_enabled_plugins_summary">Enable or disable certain plugins</string>
 
diff --git a/app/src/main/res/xml/preferences.xml b/app/src/main/res/xml/preferences.xml
index 6dab9138..64438fcb 100644
--- a/app/src/main/res/xml/preferences.xml
+++ b/app/src/main/res/xml/preferences.xml
@@ -35,6 +35,12 @@
             android:singleLine="true"
             android:summary="@string/pref_cooldown_summary"
             android:title="@string/pref_cooldown_title" />
+        <SwitchPreference
+            android:defaultValue="true"
+            android:key="@string/key_pref_passive_mode"
+            android:summaryOn="@string/pref_passive_mode_summary_on"
+            android:summaryOff="@string/pref_passive_mode_summary_off"
+            android:title="@string/pref_passive_mode_title" />
         <Preference
             android:key="@string/key_pref_plugins"
             android:summary="@string/pref_enabled_plugins_summary"