// Variant16x Obsidian Pressure Plate
craftingTable.removeByName("variant16x:obsidian_pressure_plate");

// Variant16x Obsidian Button
craftingTable.removeByName("variant16x:obsidian_button");
craftingTable.addShapeless("variant_obsidian_button", <item:variant16x:obsidian_button>, [<item:minecraft:obsidian>, <tag:minecraft:wooden_buttons>]);