Comment 7 for bug 724865

@Florian, I think it's a bug in unity 2D (you don't listen to modifier key). It was my first implementation in Unity 3D.

So right, we can try to do that (ignoring the modifier key) in Unity 3D as well and then avoid weird fingers contortion for the primary use case :)
So, basically, in the French layout (oss) we would have (& is the key for 1 with shift enabled):
Super + & <=> "Super 1" (activate the first item)
Super + Shift + & <=> "Super Shift 1" open a new instance for the first item

I'll have a look and do that. Thanks Mark and Florian!