Extend a line from an indicator

[higher.high]

I have drawn a line from point A to point B from my indicator. I want to extend line (identified by it's tag) to the current bar. Is it possible?

[NinjaTrader_MichaelM]

Hello higher.high,

Thank you for writing in. Yes this is absolutely possible.
You simply need to call the DrawLine method again using the same tag.
For example:

//Your original line where barA is the closest bar to the current bar and barB is the furthest back
if(!drawn){
DrawLine("myLine", barA, Close[0], 10, barB, Color.Red);
drawn = true;
}
//Extend the same line
if(drawn)
{
DrawLine("myLine", 0, Close[0], 10, barB, Color.Red);
}

Please let me know if I may be of further assistance.