Databox modifcation

Hey traders, as someone who is not familiar with coding custom scripts, and who also might be missing an obvious piece of information, please bare with me as I try to make my inquiry as beneficial as possible to everybody. A formula to add a simple range function to the data box is what I would love. Simple formula, the high of the candle minus the low of the candle AKA (High-Low=Range). Is this already existing and if not would the process be feasible given some dedication? P.S if someone steals this non patented idea, thats fine, just dont forget @erickthesublimeguy