Position Size Calculator for Bracket Settings

Could you add a “position size calculator” to the “Bracket Settings”?

Lets say I want to risk $100 on a trade. I would put 100 into the " at risk" input box and then based on my entry price and stop loss price, the position size calculator would automatically calculate how many contracts(or the nearest # of whole contracts) of a product would create this scenario every time I enter a trade. This would be very helpful for active traders.