DrawRegion confusion

[Burga1]

Hello,

I'm attempting to place a DrawRegion on my (historical) chart that will dynamicly change the opacity values according to a variable. I'm having trouble because the "tag" parameter constantly erases and re-draws the DrawRegion on the chart each time called so there is no non-continuous shaded area of various opacities...it seems the "tag" parameter is necessary and cannot be omitted, how can I get around this? For example:

int tracks = 4; //set the number of bars to use for the Region
int pressure = 6; //set the value for opacity

DrawRegion("tag1", tracks, 0, Bollinger(2, 14).Upper, Bollinger(2, 14).Lower, Color.Empty, Color.Lime, pressure);

As stated this will color the area between the Bollinger bands however only until the DrawRegion command is called again and then the Region is re-drawn and the "old" Region is erased...can't I just have a continuous region colored in on the chart with differing opacities based upon a variable value? Thanks in advance.

[NinjaTrader_Austin]

Burga1, if you want a new region to draw every time, you'll have to assign them unique drawing tags (with CurrentBar, which changes for every bar), like this:

DrawRegion("my region" + CurrentBar, tracks, 0, Bollinger(2, 14).Upper, Bollinger(2, 14).Lower, Color.Empty, Color.Lime, pressure);

[Burga1]

Thank you for your help Austin. That solves the problem...