I (the post author) designed the layout with Vim in mind, so I placed hjkl in decent spots and added som Vim specific combos. But other than that I just learne

I (the post author) designed the layout with Vim in mind, so I placed hjkl in decent spots and added som Vim specific combos. But other than that I just learned all the positions from scratch. For me it's not so much the positions I think about, but the mnemonics. For example "d" deletes, so I just have to think "press d", not "press this key in this spot. So learn the new layout and the Vim commands will follow.