This Indicator shows you the strength of the Currency in comparison for all other Main Currencys at the timeframe you choose. The Currencys in this Indicator is: EUR, USD, GBP, CHF, AUD, CAD, JPY The Base is the RSI (relative strength Indicator) with the following Currency pairs:
The letters in the LineChart: EUR = E USD = U GBP = G CHF = C AUD = A CAD = C JPY = J
The CSI can help to see, if your trading pair have the potential to breakout on the support and resistance or if it more likely go back. Some people say that the banks use this indicator.
NZD is missing there because Tradingview only support 6 variables. If you have a solution for than, please let me know.