diff --git a/app/src/main/kotlin/com/simplemobiletools/notes/pro/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/notes/pro/activities/MainActivity.kt
index 44e84c52..79eb9e15 100644
--- a/app/src/main/kotlin/com/simplemobiletools/notes/pro/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/notes/pro/activities/MainActivity.kt
@@ -155,6 +155,8 @@ class MainActivity : SimpleActivity() {
             findItem(R.id.open_search).isVisible = !isCurrentItemChecklist()
             findItem(R.id.remove_done_items).isVisible = isCurrentItemChecklist()
             findItem(R.id.import_folder).isVisible = hasPermission(PERMISSION_READ_STORAGE)
+            findItem(R.id.lock_note).isVisible = mNotes.isNotEmpty() && !mCurrentNote.isLocked()
+            findItem(R.id.unlock_note).isVisible = mNotes.isNotEmpty() && mCurrentNote.isLocked()
 
             saveNoteButton = findItem(R.id.save_note)
             saveNoteButton!!.isVisible = !config.autosaveNotes && showSaveButton && mCurrentNote.type == NoteType.TYPE_TEXT.value
@@ -178,6 +180,8 @@ class MainActivity : SimpleActivity() {
             R.id.new_note -> displayNewNoteDialog()
             R.id.rename_note -> displayRenameDialog()
             R.id.share -> shareText()
+            R.id.lock_note -> lockNote()
+            R.id.unlock_note -> unlockNote()
             R.id.open_file -> tryOpenFile()
             R.id.import_folder -> openFolder()
             R.id.export_as_file -> tryExportAsFile()
@@ -1059,6 +1063,14 @@ class MainActivity : SimpleActivity() {
         }
     }
 
+    private fun lockNote() {
+
+    }
+
+    private fun unlockNote() {
+
+    }
+
     fun currentNoteTextChanged(newText: String, showUndo: Boolean, showRedo: Boolean) {
         if (!isSearchActive) {
             var shouldRecreateMenu = false
diff --git a/app/src/main/kotlin/com/simplemobiletools/notes/pro/models/Note.kt b/app/src/main/kotlin/com/simplemobiletools/notes/pro/models/Note.kt
index 26a262ca..f9dae3dc 100644
--- a/app/src/main/kotlin/com/simplemobiletools/notes/pro/models/Note.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/notes/pro/models/Note.kt
@@ -6,6 +6,7 @@ import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.Index
 import androidx.room.PrimaryKey
+import com.simplemobiletools.commons.helpers.PROTECTION_NONE
 import java.io.File
 
 @Entity(tableName = "notes", indices = [(Index(value = ["id"], unique = true))])
@@ -34,4 +35,6 @@ data class Note(
             value
         }
     }
+
+    fun isLocked() = protectionType != PROTECTION_NONE
 }
diff --git a/app/src/main/res/menu/menu.xml b/app/src/main/res/menu/menu.xml
index 7aa1bf9d..c5d0e1d8 100644
--- a/app/src/main/res/menu/menu.xml
+++ b/app/src/main/res/menu/menu.xml
@@ -46,6 +46,14 @@
         android:icon="@drawable/ic_share_vector"
         android:title="@string/share"
         app:showAsAction="ifRoom" />
+    <item
+        android:id="@+id/lock_note"
+        android:title="@string/lock_note"
+        app:showAsAction="never" />
+    <item
+        android:id="@+id/unlock_note"
+        android:title="@string/unlock_note"
+        app:showAsAction="never" />
     <item
         android:id="@+id/open_file"
         android:title="@string/open_file"