Currently ucupaint node group can only be used one time inside a material. The material itself can be used on multiple objects since ucupaint already supports multiple objects with the same material. But if you want to reuse the node group in other material or even in the same material itself, you can't do that yet.
Currently ucupaint node group can only be used one time inside a material. The material itself can be used on multiple objects since ucupaint already supports multiple objects with the same material. But if you want to reuse the node group in other material or even in the same material itself, you can't do that yet.