Numbering shipping labels

Hello,

I just bought the premium version of your plugin and it is amazing. Our logistic is much easier with the shipping labels we create thanks to this plugin. However, I would like to know if we can add numbers to count the amount of shipping labels in one order.

Let me explain. We currently work as a marketplace, so in one order it could be products from 3 different suppliers. So, we generate 3 shipping labels. Each one has the products from a different supplier thanks to the conditional logic in the plugin. But we would like to add the numeration on each shipping label. For example, in the case the are products for 3 suppliers, each shipping label could have the numeration 1/3, 2/3 and 3/3. Is this possible?

Hope you can help us.

Thank you