Searched online but didnt see anything that resembles what I saw in Youtube video. Currently using Thinkorswim which doesnt have this feature - any recommendations?
My guess is that OP meant to ask for pnl "per trade" as in a little box with actions on top of a line marking the position. Trading view has that and can link your account to multiple brokers
Ninjatrader with the tool chart trader in the graphic. You can see the current profit en ticks or $ (based your setting)