Paint every N'th bar

[Pabulon]

Hi,
I'm looking for a way to paint in a different color every 3rd bar on the chart.
I've splitted daily chart of US indice into 3 bars so that every 3rd bar represents RTH session, and the previous 2 are Globex. I'd like to be able to paint RTH session bars for the easier read of the chart.
How should I approach that? I have no real backgroud in coding. Maybe there is something similiar already?

[NinjaTrader_Gaby]

Hello Pabulon,

Thank you for your post.

Below is a link to a support article on getting started with NinjaScript.

https://support.ninjatrader.com/s/article/Developer-Guide-Getting-Started-with-NinjaScript

BarBrush can be used to change the color of a bar.

https://ninjatrader.com/support/helpGuides/nt8/barbrush.htm

To color every third bar, you could do something like a counter variable that gets incremented on every bar close and reset once the counter hits 3. Or, a check if (CurrentBar % 3) == 0.

https://ninjatrader.com/support/helpGuides/nt8/currentbars.htm

Please let us know if you have any further questions.