VTT zone shift

Dear @Mike Duggan or whom I may concern,
Is there a way to shift a zone — for example the x-hight — up in a specific ppm as one is able to do in FontLab or Glyphs?
I’m sure there is, but I was not able to find a reference or figure it out with help of looking at the sample font.

Bonus questions, does this also work in variable fonts?


  • ewalthert
    Thank you @Jens Kutilek again and again!
    Luckily the x-height is not variable but evidently too low in 19ppm.

    I will give this a try.
    No doubt the information was to find, but above my head and therefore not recognised by me. ;)