This change set enables Scratch to export scripts (block stacks) into an xml format, and to import scripts from xml files.
Once this change set is filed in, you will get an additional menu entry in the right button blocks menu (for export), and in the right button editor menu (for import).
Now you can use Scratch to edit your own external code, and create Scratch code in other applications. Any Scratch projects created this way will also run online.
Have fun Jens