diff --git a/README.md b/README.md
index 6a63cb8..a812c04 100644
--- a/README.md
+++ b/README.md
@@ -6,18 +6,29 @@ Original namespace, but really it was another. Manual transfer is boring and req
 This plugin can fix error in 3 clicks.
 
 <p align="center">
-<img src="images/screenshot.png"/>
+   <img src="images/screenshot.png"/>
 </p>
 
 ## How to install
 1. Download a release with the plugin
-2. Install then plugin into Visual Paradigm (Help - Install plugin
+2. Install then plugin into Visual Paradigm (Help - Install plugin)
 3. Click on Export comments as DDL in context menu of ER Diagram
 
 ## How to use
 1. Open diagram: Tab "Plugin, button Swap Nicknames"
    ![](images/button.png)
 2. In Swap nicknames dialog select nicknames, which you want to swap. Click "Do it!" and
-take a coffee - operation is really long. If you want, you can click "Stop". Process will 
+take a coffee - operation is really long. If you want, you can click "Stop". The process will 
 be stopped, but not immediately.
 
+## Notes
+1. Please, save a project before swap nicknames. Only one way cancel swapping is swap again.
+2. You can see log in the Message toolbar (very useful in the Dry run mode)
+<p align="center">
+   <img src="images/messages.png"/>
+</p>
+
+3. No options select elements to swap nicknames, but you can:
+    1. Create a new temporal diagram
+    2. Make auxiliary views of required elements (simple copy-paste);
+    3. Apply plugin on temporal diagram and delete that diagram.
diff --git a/images/messages.png b/images/messages.png
new file mode 100644
index 0000000..5dd8734
Binary files /dev/null and b/images/messages.png differ