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i think we're just making feature suggestions to ourselves at this point. 

This is probably the biggest issue currently with supporting our customers, Other POS systems can do it, Linga needs to find a way to make this possible.

I have had a couple of customers ask me about this option. 
I know it's already a feature in Positouch POS and possibly some others.

I had a customer request this feature today

We also have multiple customers asking for this