Additional Search field for Customer in PoS

If I go to

Setup > DocType

and add an additional field and then scroll down to “Search Fields” and enter:

customer_name,[new field name here]

should the customer search in the PoS module respect this and search by customer_name and the [new field name]? When I change this, it seems to only search by the customer_name and not by new field.

The new field I am adding phone, I see it in the ADDRESS AND CONTACT section, but wasn’t sure how to search by it. I added another field for simplicity, and testing. Any direction on how to enable customer search by name and phone would be much appreciated.