The price shift key allows for one operation only using the second price. I would like to use the second price for a number of operations during happy hour. How do I go about getting this right?
It sounds like you want the shift button to act as a stay down instead of pop up type. this means it will stay where you set it until you set it back to the other level manually. you need to set this in the shift programming. I don't have the codes for this model. Check your manual for the setting.
If you don't have one, C-tech collective have an NX-5400 programming manual listed, so it should be in here:
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