Adjusted README.md by adding additional images and description regarding placeholder behaviour feature.

Adjusted extension version within BappManifest.bmf to 1.3.

Author: bytebutcher

BappDescription.html

@@ -46,6 +46,11 @@
     <li><strong>Output should replace selection:</strong> will replace the selection with the output of the to be executed command</li>
 </ul>
 
+<p>
+In addition it is possible to customize how placeholders behave when multiple HTTP messages are selected by clicking the "Advanced"-button.
+By default each selected HTTP message forms a separate command. However, it is also possible to join all values of a specific placeholder using a custom separator.
+</p>
+
 <p>After creating new context-menu-entries using the "Add"-button they can be edited or deleted again using the "Edit"- and "Remove"-button. In addition the order in which they appear in the context-menu can be altered using the "Up"- and "Down"-button.</p>
 
 <p><b>Context-Menu</b></p>

BappManifest.bmf

@@ -2,11 +2,11 @@ Uuid: f089f1ad056545489139cb9f32900f8e
 ExtensionType: 1
 Name: Custom Send To
 RepoName: custom-send-to
-ScreenVersion: 1.2
+ScreenVersion: 1.3
 SerialVersion: 1
 MinPlatformVersion: 0
 ProOnly: False
 Author: Thomas Engel
 ShortDescription: Add a customizable "Send to..." menu to the context menu
-EntryPoint: burp-send-to-extension/build/libs/burp-send-to-extension-1.2.jar
+EntryPoint: burp-send-to-extension/build/libs/burp-send-to-extension-1.3.jar
 BuildCommand: cd burp-send-to-extension; ./gradlew fatJar

README.md

@@ -29,6 +29,12 @@ New context-menu-entries can be added using the "Add"-button. Each entry consist
 * **Show preview:** gives you the chance to preview and change the command before executing it.
 * **Output should replace selection:** will replace the selection with the output of the to be executed command.
 
+In addition it is possible to customize how placeholders behave when multiple HTTP messages are selected by clicking the "Advanced"-button. 
+By default each selected HTTP message forms a separate command. However, it is also possible to join all values of a specific placeholder using a custom separator.
+
+![Burp-Send-To-Extension Add-/Edit-Dialog](images/burp-send-to-extension-add-edit-dialog.png)
+![Burp-Send-To-Extension Advanced-Dialog](images/burp-send-to-extension-advanced-dialog.png)
+
 After creating new context-menu-entries using the "Add"-button they can be edited or deleted again using the "Edit"- and "Remove"-button. In addition the order in which they appear in the context-menu can be altered using the "Up"- and "Down"-button.
 
 ![Burp-Send-To-Extension Tab](images/burp-send-to-extension-tab.png)