Can I scan products, then give all these products a discount?

[SundayBestDay]

I am trying to optimize my workflow.

In my brick and mortar shop we have some products that don't sell.

After a while we then add these products to the 'sale rack'.

I want to scan a bunch of items in store. And then add a discount to ALL these items (say 10%). For the POS but also for the online store.

Is this possible?

[ShopDoc]

You can create a collection and name is for example "December sale", scan those items to collection, then create discount and apply it to that collection only.