When I try your first method it looks like this... https://i.imgur.com/vf3Fiqj.png then the cad becomes like this https://i.imgur.com/9PJ48u0.png
I think maybe I put in the mx style code wrong way how is the right way? ![Smiley :)](https://cdn.geekhack.org/Smileys/solosmileys/smiley.gif)
You added an extra key on the bottom row instead.
This raw code works for the basic ANSI layout:
[{a:7},"","","","","","","","","","","","","",{w:2},""],
[{w:1.5},"","","","","","","","","","","","","",{w:1.5},""],
[{w:1.75},"","","","","","","","","","","","",{w:2.25},""],
[{w:2.25},"","","","","","","","","","","",{w:2.75},""],
[{w:1.25},"",{w:1.25},"",{w:1.25},"",{_s:2,w:6.25},"",{w:1.25},"",{w:1.25},"",{w:1.25},"",{w:1.25},""]
The relevant part modifying the spacebar part being {_s:2,w:6.25}