anchor.diff:  
   === Directory Structure
   
  -Now let's have a look at the project's file structure in the File Explorer (ctrl-2). This explorer shows the physical directory structure on your hard drive.
  +Now let's have a look at the project's file structure in the File Explorer (kbd:[Ctrl]+kbd:[2]). This explorer shows the physical directory structure on your hard drive.
   
   *  *assets* – This directory corresponds to the Project Assets node. It is needed for the assetManager. This is the recommended internal structure:
   **  `assets/Interface`
  
positive.code: image::sdk/jmonkeyplatform-docu-5.png[jmonkeyplatform-docu-5.png,width="421",height="298",align="right"]
  
  
  
  [IMPORTANT]
  ====
  Pressing *F6 builds &amp; runs* the _main_ class of the _main project_. If there are several classes, or several projects, you have to specify which one you want F6 to run. Right-click a project and choose Set As Main Project, then right-click the project again and choose Properties > Run and choose a Main Class. +
  To build and run the main() of _any file that is open in the editor_, press *Shift-F6* !
  ====
  
  
  *  Right-Click the project and use the context-menu to clean all generated classes and JARs.
  *  Right-Click individual files with a main method to build and run them. (Shift-F6)
  *  Press the Run button (green arrow in the toolbar) to build and run the project. (F6)
  
  *More than one project open?* The toolbar buttons and the F-keys are bound to the main project, which is shown in bold in the Project Explorer. Right-click a project and select Set As Main Project to make it respond to the toolbar buttons and F-keys.
  
  *Worried About Proprietary Lock-in?* You are never locked into the jMonkeyEngine SDK: At any time, you can change into your project directory on the command line, and clean, build, and run your project, using non-proprietary Apache Ant commands:
  
  
negative.code: *  *dist* – This directory contains the executable JAR files. (Will be generated by the jMonkeyEngine SDK when you build the project.)
  *  *test* – The jMonkeyEngine SDK will store JUnit tests here if you create any. (Optional.)
  
  
  === Project Configuration
  
  [RMB] select the project and from the menu open the project `Properties`.
  
  *  In the `Run` section:
  **  Specify the main class of your project. (Pressing kbd:[F6] runs this main class.)
  **  You can optionally configure JVM options and command line parameters. In most cases, set the `-Xms VMOption [NUMBER] m` for the memory usage.
  ***  For example (-Xms500m).
  ***  see link:http://performance.netbeans.org/howto/jvmswitches/[http://performance.netbeans.org/howto/jvmswitches/]).
  *  In the Application section:
  **  Specify the game title (by default the game will be named `BasicGame`).
  **  Specify the vendor name (your name), a short description, your project's homepage, and a splash screen.
  
  
  === Clean, Build and Run Cycle
  