Hi,
I am working on the bold version of a hand drawn font.
So kerning is necessary but does not have to be so perfect 
What I would like to do for the bold:
apply the values of the regular (this I know how to do) and slightly reduce ALL values AT ONCE.
SO: Is there a way to edit all kerning values at once?
THX!
Georg
You mean kerning or sidebearings?
You can import metrics via File > Import > Metrics and point it to the other file. Or, if it’s really only kerning, copy/paste kerning via Window > Kerning. Or, if it is only sidebearings, you can use the Steal Sidebearings script from my github at github.com/mekkablue/Glyphs-Scripts/
Reducing sidebearings for selected glyphs can be done via Filters > Transformations > Metrics and a negative value in combination with the Relative option.
Hi, it’s only about the kerning:
Is there a way to edit all kerning values at once?
Via scripting only. What exactly do you want to do? Subtract x from all kerning values or divide all by y?
Hi Rainer, sorry for my late reply
what would you think works better?
Subtracting or dividing?
I guess subtracting …
Best
Wishes!
Georg: I’ll call you to discuss details.
Anyone else interested in this: expect a new addition to my scripts on GitHub soon.