Feature request: increase size of flash window

I noticed that in the new beta, "Resize display to fit screen" is officially supported, which is FANTASTIC! Thank you!

I was wondering, in addition to this support, if we can have the size of the exported swf to be independent of the size of the MMF frame?

Let's say that, for example, I have a 320x240 MMF application, but I want the exported swf to be 640x480 with the 320x240 application blown up inside. Can this be added to the export options?

The problem is many webpages that let you upload .swf files don't have an option to expand the size of a document on their site (mochiads does not, if I remember). This would be more of a convenience for creators who make retro-styled games that have a low resolution as well as anyone who is looking to reduce file size

Many other flash game engines do as well. The best example would be Flixel's engine

Here's an example of the code they use

package
{
import org.flixel.*; //Allows you to refer to flixel objects in your code
[SWF(width='640', height='480', backgroundColor='#000000')] //Set the size and color of the Flash file

public class HelloWorld extends FlxGame
{
public function HelloWorld()
{
super(320,240,PlayState,2); //Create a new FlxGame object at 320x240 with 2x pixels, then load PlayState
}
}
}

of course, I know MMF works different, but I'm sure this would be possible and would be very helpful if it was added