Update canvas in all scenes when edited?

Hi all,

Still hard at work on my first game. Learning a TON!

Here's where I'm currently stuck: I've got a demo scene, where I've been having fun creating jump pads, exit cylinders, all sorts of goofy nonsense. I also created a very simple GUI, just showing the level number, the score, that sort of thing.

I'm about ready to start making a bunch of different levels, but here's my question: what happens when I've made 10 levels and then I want to make a change to my GUI? Like, say, move the score to a different position, or change the font or whatever.

Do I have to go through all 10 levels and make that change? Or is there a way to affect all the scenes' GUIs at once?

Thanks! ~M