- bm.*.layers.*.verify() - bm.*.layers.*.is_singleton - bm.*.layers.*.copy_from(other) also added api functons - BM_data_layer_copy(...) - CustomData_layertype_is_singleton(type)
- bm.*.layers.*.verify() - bm.*.layers.*.is_singleton - bm.*.layers.*.copy_from(other) also added api functons - BM_data_layer_copy(...) - CustomData_layertype_is_singleton(type)