Now that I think about it, why can't you use the right click function of the 'making your clones loot' post. Know what I mean? If they all stand right on top of the flight guy, and you push the corresponding bound button, they should in theory all right click the flight master, thus opening the screen for you. Right?

I'll give it a test when I get the chance. A bit busy atm.

Ok I lied, I wasn't that busy (well I was, I just couldn't wait, lol). I tested it, and it works.

Combine the /script SetBinding("SHIFT-Q", "TURNORACTION") stuff with your mod, and you get some thing much better.

I run over to the quest guy, stop just in front of the quest giver, so that my clones stop standing right ontop of him. The clones are all zoomed in, and looking straight down. I then mash the button to right click (shift q for me, you can change it to what ever) a few times. All the clones will then have the gossip window open. Then you just proceed to use your mod like normal. badda bing, badda boom, completing quests all from one window, on all your toons.