How to Sell Unavailable Items in Point of Sale?

Am pretty new to ERPNext.
I searched the forum to find a way to sell items with 0 stock while using the POS, but. I found nothing useful in my case.
For example, if there is an item with 0 stock qty, when I click it in the POS, it says item unavailable, but I want it to pass the item, and register it as -1 in stock, so my workflow won’t stop. Is there any way to do this?
Thank you.

Edit: I just found out about the Allow Neagtive Stock option in Stock Settings.