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I'm using Fontlab 4.6 in MacOSX, and I have a Light weight and a Black weight of a font (T1), with their kerning and metrics adjusted. I want to generate 3 intermediate weights (Book, Medium, Bold) using weight axis, but I don't want to generate a MM font. When I generate them (I define a weight axis for each of them, then I assign the light axis to the black axis, and from the black weight I generate an instance), the kerning and metrics values stay the same of one of the masters (the black axis in this case). Will I have to adjust kerning and metrics again for each intermediate weight? Is there a way to increase or decrease metrics and kerning values proportionally, just as occurs to the weight?