Guild Wars 2

Hello guys, does anyone know of a way to have different sets of keybinds for each one of your characters?
I play a Thief and my younger brother plays a guardion and it’s extremely annoying because each time we switch we have to change keybind setups,setting our favorite keybinds all over again.
Is there a way to have quick access to multiple keybind setups? so that we can quickly change keyind sets every time?
Thanks!

I use diferent key-settings for different classes/combos too.
For this I use the Razer Nostromo gamepad. It can save diferent key-setups (I think up to 12 or so). I recomend it.

With just the game I have no idea if its possible.

Thanks for the idea, but I’m not going to buy this product just for this sake.
Is there a way to do it without purchasing anything? maybe a software of some sort?