Better Risk-to-Reward drawing

It would be very nice if when drawing the risk-to-reward box, that you were able to extend it in either direction (but more importantly the “forward” direction, to the right) without it changing the height of the TP or if you are using the middle line (entry price), without it changing the price level. This is simply to make it easier to extend it, as now when you extend it you are able to change the levels which isn’t always wanted..

Another thing is if the box would reflect where price is inside it, like in TradingView, however, that is of less importance to me than the feature above.

Hope this makes sense. Thanks!