Easy way to remove chart lines/text in code?

HI all:

I have code where I draw text/lines on a chart within a cbot as follows:

Chart.DrawHorizontalLine(key + " line", priceWherePositionCanBeOpened, Color.Goldenrod, 2, LineStyle.DotsRare);

Chart.DrawText(key + " text", "Line Where Position Will Be Opened: "
                + pipsToMoveBeforeEnteringPosition + " pips"
                + " (" + Math.Round(priceWherePositionCanBeOpened, CONST_numberOfDecimalPlacesToRoundToForDebugOutput) + ")",
                _marketSeriesLong.Close.Count - CONST_textOffSetOnLinesDrawn, priceWherePositionCanBeOpened, Color.Goldenrod);

I know there's the "IsAlive" property, but that's only a "get", we can't "set" those values (which would make it sooooooooo easy to remove lines/text we've drawn! Spotware? API feature? :-) )

Is there an easy way to delete/remove these later once they're drawn? Or do we have to set the Y-axis parameter to some value which is way off the chart?

Thank you.