I am still searching for a solution for my problem: All glyphs have the same width.
I already changed the width with the Metric options, but every time when I export my font as a .fon file the width is about 11px.
I opened an installed pixel font and changed 5-6 letters to test of this works, and I have no problem! But the next time I opened the file, I couldn't change the glyphs anymore!
In the list they were changed but not in the exported file.
I uploaded the two files, one with the "same width glyphs" and the
test font.