The Glyph Press is a type of IRecipeManager and implements all the methods that are available to IRecipeManager's, such as removeRecipe() and removeAll().

The following script will add a tier "one" recipe to the Glyph Press that will output a Diamond when dirt is given to the Press.

ZenScript
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// <recipetype:ars_nouveau:glyph_recipe>.addRecipe(name as String, tier as String, reagent as IItemStack, output as IItemStack);

<recipetype:ars_nouveau:glyph_recipe>.addRecipe("glyph_test", "one", <item:minecraft:dirt>, <item:minecraft:diamond>);

The following script will remove all recipes from the Glyph Press that output Glyph: Touch.

ZenScript
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// <recipetype:ars_nouveau:glyph_recipe>.removeRecipe(output as IItemStack);

<recipetype:ars_nouveau:glyph_recipe>.removeRecipe(<item:ars_nouveau:glyph_touch>);