Currency strength Meter Line

HI i wish an line currency meter which works like this :

currency strength meter to show 1 line for a group of currency ( 1 line AUD, CAD, CHF, JPY, GBP, EUR, NZD, USD, XAU ) to show weakest and strongest

Each currency is constantly measured against the 8 other to determine the gain on each pair.

The compute of the strength is computed and show for a period back (by example take the 30 last candle to show the weakest and strongest

An parameter to scale the result on the chart but taking or not all the wide :

- example period back 30 means compute all on 30 last bars

- scale off means on a chart of 120 candle the display take only the last 30 candles choosen

- scale on means on a chart of 120 candle the display if for the last 30 candles and take all the place of 120 candles

- parameter for each group currency: color, thickness of the line, display of label group at the end of the line with the color of the group

of course i need the mql4 source which is ok with actual terminal MT4 version (1440)

Thank you for your response