request for jangseohee: added option for different exchanges, added option to remove data before X point and after Y point in time using candle numbers.
![NYA: [RS]jangseohee - NHNL Index Indicator V1](https://s3.tradingview.com/c/CAdyQJxW_mid.png "[RS]jangseohee - NHNL Index Indicator V1")
