I made kerning groups and set the values. It’s looking good but I want to increase the values. For example +50 to all.
Is there any easy way to add 50 to all kerning values.
+50 to all left and right side bearings? (This will also work in my case)
If you want to have extra space by kerning, you might get away with adding a feature class called All (or AllLetters if you want it only between actual letters) via File > Font Info > Features > + and then add a feature called kern with the following code:
pos @AllLetters <30 0 60 0>;
This adds 30 units extra on either side of each and every letter.