FCI shows you wath currency is strong and witch is week on witch TF (ex.on TF 15 min,above eur you see 4 green bars,and below usd you see 4 red bars,that means that the eur on that time frame (TF) is strong and usd is week,and all that means that on that TF is best to trade on EUR/USD)
Trend scanner shoes you witch pair is trending on what TF,more red lights stronger downtrend,more green lights-stronger uptrend (ex. let's say that on eur/usd you hawe red light on TF 15m,30m,1h,4h witch means that if you open any of that TF for that pair you will see very strong downtrend and that price going down)
This two indicators are very useful if you are a trend trader,and very helpful to determine on witch pair you hawe strong trend.
Sorry for bad english,I hope you understand me...