Hi, we are interested in both your VEVOR Automatic Label Dispensers, model LDL-30-V2 and LDW-20-V2. We need a label dispenser for use in production and we want to use it just for the dispenser funktion, not connected to a printer. Does any of these models has a button, where you can choose when a new label is needed? Only one label at a time and not as labels/minute?