I created a characteristic as colour.and assigned it to a class 300 and to a material.and in the value assignment screen i made it a single value. and in the cl01 when i create a class and when i assigned a my colour characteristic to class.its not blocking me from choosing only i colour. I was able to choose any number of colours as i want.if it is a single value characteristic then it should choose only one value.
why is it happening so. is there any config to do?