That white line looks like Tenkan Sen line of Ichimoku system...just a guess.
However, for index futures like Nifty, market profile, volume analysis, Gom Volume ladder,average daily range would serve better than any solitary indicators.
Currently, Nifty futures have an average daily range of around 60 points, so daily 20-25 points on nifty would be a good achievement if one is day trading.
That realsense guy has no idea what he is doing... Dont go for his indicator... Its a fraud... and mind it any paid indicator cannot help u make fortunes, so dont run after them... Just give some time and develop ur own trading system tat suits ur nature and doesnt give u goosebumps while trading.
Trading Nifty Futures Algo trading since 2012