How to get kerning to copy-glyphs

Hello: When I make copies of some glyphs, the kerning disappear from the copies?! Why? And how do I get the kerning into these copies? Thank you!

For glyph kerning, it is stored by the glyph id. The copy gets a new ID. You need to go through the kerning dict and duplicate all kerning with the ID from the old glyph and assigning it with the ID of the new. Or use class based kerning.

Thanks Georg, I have made some class kerning to do the trick … Best, Morten

When I check kerning in my font, there are a lot of pairs which are not locked … Can I lock them all at once?

Window > Kerning > gear menu > Compress Kerning