//To open a file named "example.fla" relative to the executing JSFL script, you simply say:
//open a file named example
fl.openDocument( 'file:///example.fla' );

//insert the V2 button components
fl.componentsPanel.addItemToDocument({x:0, y:0}, "UI Components", "Button");

//delete the instance added to the stage
document.deleteSelection();