Quick way to add engine mode conditionals?

We need to add a lot (~20) of "does not have category" conditionals to a custom engine mode. It looks like the values written to the .ncrunch file are encoded, so we can't just edit the file directly. Is there another way to quickly add category filters other than "Add Condition" -> pick "does not have category" from drop list -> type in single category -> repeat?

I'm afraid that entering in the values one by one is currently the only way. The values in the config file are binary/base64 encoded, so copying and pasting them will be harder than just making the change manually.

You're welcome to [dead link] in this area if you can think of an improved approach.