多货币对交易的货币强弱交易系统 (Currency strength Trading System for mul)

I have one system based on currency strength.
Rule is
Entry
when one currency have best strength and check other weak currency
example EUR strength is best and CAD strength is weakest.
EURCAD buy
check another weak currency also by ascending orders.
example
CAD strength -1%
GBP strength -1.5%
AUD strength -2%

open buy orders are
EURCAD
EURGBP
EURAUD

so in one day. there may be many orders by different charts.

Exit rule is simple
if 1-2% of capital profit. close all orders.
if drawdown over 40% of capital.
close oldest orders.

I want to do this by EA.
I need one indicator that can display strength by dashboard.
as finviz.com
Do you know any indicators for this.
or can someone developer develop here for further improvement.