That’s a very interesting idea. One issue is that having the ] on S means a clash – F11 is there in the default qwerty. It could potentially move, such as to the /? key.
That would look like this (I’m going to start naming them since we have so many possibilities):
"RLNS"
But if moving the cursors down a row like that, I think it’d be better to just leave all the brackets where they are on default qwerty, like this:
"Cursors below"
I have to say I’m now torn between the above (“cursors below”) and what I had in the “RLVZ” bit of post 137 above, which is this:
"RLVZ"
Way to throw a spanner in the works 