Added MprTool.exe to analyze MPR file

Author: tknippenberg

content/en/docs/refguide/general/mx-command-line-tool/analyze-mpr.md

@@ -36,6 +36,8 @@ The `OPTIONS` are described in the table below:
 
 To identify which types of documents (pages, microflows, etc.) have the largest contribution to the MPR file size, you can focus on the **Size by unit type** section, where the number of occurrences and file size contribution are displayed in percentage.
 
+For more details you can use the MPR Tool, which can be found at `C:\Program Files\Mendix\<version>\modeler\MprTool.exe`. After opening the .mpr file for your app, the menu item `Search -> Find unit by ID` can be used to find the name and module for a particular unit.
+
 ### Examples
 
 Valid examples are given below: