How to get rid of arrows and lines in backtest

[Ozvegas]

Hello,

I am using the backtesting built into mt4 and i want to know how i can get rid of the arrows that are drawn when a trade is placed and closed, as well as the dotted line drawn in between the open and close point.

I can change the color of the arrows but i cant seem to make the color None. Neither Null or CLR_NONE work.

Im using an EA and all the lines and arrows get in the way