diff --git a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/MainActivity.kt
index 405fea96..6fc1b17a 100644
--- a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/MainActivity.kt
@@ -87,7 +87,7 @@ class MainActivity : SimpleActivity() {
     }
 
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
-        menuInflater.inflate(R.menu.menu, menu)
+        menuInflater.inflate(R.menu.menu_main, menu)
         return true
     }
 
diff --git a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/ThreadActivity.kt b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/ThreadActivity.kt
index c61414b8..88089b70 100644
--- a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/ThreadActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/activities/ThreadActivity.kt
@@ -6,6 +6,8 @@ import android.os.Bundle
 import android.provider.Telephony
 import android.telephony.SmsManager
 import android.util.Log
+import android.view.Menu
+import android.view.MenuItem
 import com.simplemobiletools.commons.extensions.applyColorFilter
 import com.simplemobiletools.commons.extensions.onTextChangeListener
 import com.simplemobiletools.commons.extensions.toast
@@ -60,6 +62,19 @@ class ThreadActivity : SimpleActivity() {
         bus?.unregister(this)
     }
 
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        menuInflater.inflate(R.menu.menu_thread, menu)
+        return true
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        when (item.itemId) {
+            R.id.add_person -> addPerson()
+            else -> return super.onOptionsItemSelected(item)
+        }
+        return true
+    }
+
     private fun setupAdapter() {
         val threadId = intent.getIntExtra(THREAD_ID, 0)
         val items = getThreadItems(threadId)
@@ -98,6 +113,10 @@ class ThreadActivity : SimpleActivity() {
         }
     }
 
+    private fun addPerson() {
+
+    }
+
     private fun getThreadItems(threadID: Int): ArrayList<ThreadItem> {
         val messages = getMessages(threadID)
         messages.sortBy { it.id }
diff --git a/app/src/main/res/drawable/add_person_vector.xml b/app/src/main/res/drawable/add_person_vector.xml
new file mode 100644
index 00000000..33215827
--- /dev/null
+++ b/app/src/main/res/drawable/add_person_vector.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="96dp"
+    android:height="96dp"
+    android:viewportWidth="128"
+    android:viewportHeight="128">
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="m78.881,62.706c11.048,0 19.996,-8.948 19.996,-19.996 0,-11.048 -8.948,-19.996 -19.996,-19.996 -11.048,0 -19.996,8.948 -19.996,19.996 0,11.048 8.948,19.996 19.996,19.996zM33.891,52.708 L33.891,37.712 23.893,37.712 23.893,52.708 8.897,52.708 8.897,62.706 23.893,62.706 23.893,77.703 33.891,77.703 33.891,62.706 48.888,62.706 48.888,52.708zM78.881,72.704c-13.347,0 -39.991,6.699 -39.991,19.996l0,9.998 79.982,0 0,-9.998c0,-13.297 -26.644,-19.996 -39.991,-19.996z" />
+</vector>
diff --git a/app/src/main/res/menu/menu.xml b/app/src/main/res/menu/menu_main.xml
similarity index 100%
rename from app/src/main/res/menu/menu.xml
rename to app/src/main/res/menu/menu_main.xml
diff --git a/app/src/main/res/menu/menu_thread.xml b/app/src/main/res/menu/menu_thread.xml
new file mode 100644
index 00000000..1cadadb3
--- /dev/null
+++ b/app/src/main/res/menu/menu_thread.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/add_person"
+        android:icon="@drawable/add_person_vector"
+        android:title="@string/add_person"
+        app:showAsAction="ifRoom" />
+</menu>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index edfee464..494c6b1e 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -3,6 +3,7 @@
     <string name="app_launcher_name">SMS Messenger</string>
     <string name="type_a_message">Type a message…</string>
     <string name="message_not_sent">Message has not been sent.</string>
+    <string name="add_person">Add Person</string>
 
     <!-- New message -->
     <string name="create_new_message">Create new message</string>