Hello everyone! I'm having a trouble and hope for community's help. I'm selling carbon fabric of different types. I have one big roll and when customer orders some, I cut exactely how much he wants (5m/10m/50m/100m). Is it possible to somehow group this four items (or item withvariations, no matter) as one so that I have one stock for them ( let's say, in meters). and how apply loyalty discount (the bigger amount, the cheaper 1 meter is)
thanks in advance