It would be incredibly useful to be able to turn on a mode where instead of simply hiding a recipe (it would do that as well) but to add to your scripts file the line to remove the recipe from the game using craft tweaker. It could append to a jei specific generated script or create a separate one for each hidden/removed item. This helps pack makers track changes as they go and what they will need to add a recipe back in re-allowing from jei. Just an idea. It would be neat to be able to further add items and blocks with content tweaker code framework (generic block/item mesh and missing texture coloring so its just a vanilla framework file).