MT4 tool

Does anyone knows how I can draw circle on mt4 chart ???
or does anyone have circle tool which i can put in exsperts folder on mt4?
I will be very grateful if anyone share this tool whit us!!
MT4 has an inbuilt shape called an ellipse and I can use as a circle ... Insert --> Shapes --> Ellipse ...but this is not help to me...I need tool whit radius !!
TX skorpio !!!!1

Well, you could stretch the ellipse apart to look like a circle.
I doubt that it is possible to write a circle tool for Metatrader.