[autocorr]

I was in the same situation for designing my layout too. Most key frequency analyses only look at text corpora. Actual key logging of typical computer usage seems harder to come by.

This is a post[1] from a fella who ran a key logger for a while. He found the top three most keys for his usage were Space, Backspace, and E. There are probably better datasets out there because it doesn't break things down, but I suspect Backspace is almost always up there.

For my layout, I have Enter and Space on the two home thumb keys and Shift and Backspace on the next outer keys. You can find my layout here[2] for more ideas if you're interested. It does however use palm keys that wouldn't be available on a DM.

[1] https://daniel.haxx.se/blog/2014/11/12/keyboard-key-frequenc... [2] http://www.keyboard-layout-editor.com/#/gists/8105b7f97f89fa...