The script is best use to clean up all drawings (horizontal line, vertical line, arrows etc) on current chart.

Please feel free to modify based on your needs.

void OnStart()    {     Comment("");     ObjectsDeleteAll(0,"",0,OBJ_VLINE);     ObjectsDeleteAll(0,"",0,OBJ_HLINE);     ObjectsDeleteAll(0,"",0,OBJ_TREND);     ObjectsDeleteAll(0,"",0,OBJ_TRENDBYANGLE);     ObjectsDeleteAll(0,"",0,OBJ_CYCLES);     ObjectsDeleteAll(0,"",0,OBJ_CHANNEL);     ObjectsDeleteAll(0,"",0,OBJ_STDDEVCHANNEL);     ObjectsDeleteAll(0,"",0,OBJ_REGRESSION);     ObjectsDeleteAll(0,"",0,OBJ_PITCHFORK);     ObjectsDeleteAll(0,"",0,OBJ_GANNLINE);     ObjectsDeleteAll(0,"",0,OBJ_GANNFAN);     ObjectsDeleteAll(0,"",0,OBJ_GANNGRID);     ObjectsDeleteAll(0,"",0,OBJ_FIBO);     ObjectsDeleteAll(0,"",0,OBJ_FIBOTIMES);     ObjectsDeleteAll(0,"",0,OBJ_FIBOFAN);     ObjectsDeleteAll(0,"",0,OBJ_FIBOARC);     ObjectsDeleteAll(0,"",0,OBJ_FIBOCHANNEL);     ObjectsDeleteAll(0,"",0,OBJ_EXPANSION);     ObjectsDeleteAll(0,"",0,OBJ_RECTANGLE);     ObjectsDeleteAll(0,"",0,OBJ_TRIANGLE);     ObjectsDeleteAll(0,"",0,OBJ_ELLIPSE);     ObjectsDeleteAll(0,"",0,OBJ_ARROW_THUMB_UP);     ObjectsDeleteAll(0,"",0,OBJ_ARROW_THUMB_DOWN);     ObjectsDeleteAll(0,"",0,OBJ_ARROW_UP);     ObjectsDeleteAll(0,"",0,OBJ_ARROW_DOWN);     ObjectsDeleteAll(0,"",0,OBJ_ARROW_STOP);     ObjectsDeleteAll(0,"",0,OBJ_ARROW_CHECK);     ObjectsDeleteAll(0,"",0,OBJ_ARROW_LEFT_PRICE);     ObjectsDeleteAll(0,"",0,OBJ_ARROW_RIGHT_PRICE);     ObjectsDeleteAll(0,"",0,OBJ_ARROW_BUY);     ObjectsDeleteAll(0,"",0,OBJ_ARROW_SELL);     ObjectsDeleteAll(0,"",0,OBJ_ARROW);     ObjectsDeleteAll(0,"",0,OBJ_TEXT);     ObjectsDeleteAll(0,"",0,OBJ_LABEL);     ObjectsDeleteAll(0,"",0,OBJ_BUTTON);     ObjectsDeleteAll(0,"",0,OBJ_CHART);     ObjectsDeleteAll(0,"",0,OBJ_BITMAP);     ObjectsDeleteAll(0,"",0,OBJ_BITMAP_LABEL);     ObjectsDeleteAll(0,"",0,OBJ_EDIT);     ObjectsDeleteAll(0,"",0,OBJ_EVENT);     ObjectsDeleteAll(0,"",0,OBJ_RECTANGLE_LABEL);    }

Recommendations:

• Create keyboard hotkey for the script - right click on script name and then select "Set hotkey".
• Or drag and drop script on the chart.