Dear POS - Inventory search to include additional attributes

Problem:

We have products that have barcodes with our own SKU and Supplier SKU but we cannot search by Supplier SKU because these have been saved as an additional attribute.

Proposed feature:

The ability to search by product's additional attributes

On DEAR Inventory, supplier SKU has been copied into a product's custom attribute to aid some searches. Searching by an additional attribute on POS would also resolve this problem