Hi there,
when I try to copy kerning groups from, let’s say A and select Ä, Á, À and then Paste Special with the options “Selected Glyphs” and “Kerning groups” only , the kerning groups will only be copied to the first selected letter, in that case Ä but not to the other selected letters À, Á, etc.
Is that a bug?
No, that is expected. You pasted only one kerning group pair onto three selected glyphs. Because what should happen if you paste 5 group pairs onto 17 selected glyphs?
In the case you describe, it makes more sense to select all A diacritics, and set the kerning groups for all of them at once.