Is it possible to specify a Master that does not affect interpolation? I have skeleton paths which I use as a template for every master in my font, and I want to be able to access this master just as easily I would a Regular or a Bold master. I tried to define it as a Light master, but since it’s only a skeleton (i.e. no actual outline), it messes with interpolation for my actual instances.
If you put it somewhere in your design space that is far away from all instances, it will be ignored. Make sure that there is no instance between it and any other master.