Here is a simple example.
Names Default To Here( 1 ); New Window( "Example", H List Box( bb1 = Button Box( "Push 1", Show( "button 1" ) ), bb2 = Button Box( "Push 2", Show( "button 2" ) ) ) );
Make sure you are not ending statements within the window definition with ":".
The following
Names Default To Here( 1 ); New Window( "Example", H List Box( bb1 = Button Box( "Push 1", Show( "button 1" ) ); bb2 = Button Box( "Push 2", Show( "button 2" ) ); ) );
only produces