this indicador is simple.
the user will fill handly some parameter like
position long or short
number of events
number of lots
The user then click on the chart to set 3 parameters:
first is the entrance
second is the stop loss
third is the forecast profit
at this time the indicator must draw the horizontal line segments plus vertical line segments from entrance to stop and entrance to profit, writing the distance in points in each vertical segment
then will make matematical operations to retrive, percentanges an money requires for the trades,
this could write whereever is easy for the program.