Show Profit / Loss before opening an Order

Currently tradingview does this really well and no other platform seems to do it. I would like to see that when I have the trade panel open that on the chart it shows the potential entry position and the ability to drag potential TP and SL positions before entering so that I can understand my risk.

Functionality:

User opens up the trading panel, when they select buy or sell then the market order position is displayed on the charts.

The user can then drag a TP to their desired TP location and be displayed the TP amount in $.

The user can then drag a SL to their desired SL location and be displayed the SL amount in $.

When they click the buy / sell button next to the order the position opens.

If they select a limit order they can drag the limit order to the desired price and the same functionality as above for the TP and SL

If they select Stops the same can happen.

Personally this is really useful to understanding the risk applied to my entry before entering so that I can build my position size how I want.

Video attach shows it perfectly.