Provide below mentioned selection options to set paraments:

1) Select symbol 1 and  symbol 2

2) Set lots sizes
Symbol 1 => 
Buy lots 
(If in profit => 1, 1, 1, 1, 1) Customizable 
(If in loss => 1, 2, 3, 5, 9) Customizable 
Sell lots      
(If in profit => 1, 1, 1, 1, 1)
(If in loss => 1, 2, 3, 5, 9)

3) 

Placing orders at X points difference:
Spacing for symbol 1 : 10 points
Spacing for symbol 2 : 100 points

OR

first entry when Coefficient (Pearson ) = or cross above or cross below X   
and / or 
first entry when Coefficient (Spearman ) = or cross above or cross below X   

Second entry when Coefficient (Pearson) = or cross above or cross below X
and / or 
Second entry when Coefficient (Spearman ) = or cross above or cross below X 
  
third entry when Coefficient (Pearson ) = or cross above or cross below X
and / or  
third entry when Coefficient (Spearman ) = or cross above or cross below X   

forth entry when Coefficient (Pearson ) = or cross above or cross below X
and / or  
forth entry when Coefficient (Spearman ) = or cross above or cross below X  
 
fifth entry when Coefficient (Pearson ) = or cross above or cross below X
and / or 
fifth entry when Coefficient (Spearman ) = or cross above or cross below X   

4) Set the correlations: Direct/In direct
      a) For Direct one is buy than other is sell
      b) For Indirect both buy or both Sell.
      c) For Direct: buy symbol 1 and buy symbol 2 ( stop loss and  take profit for both symbol separately)
      d) For Indirect : buy symbol 1 and sell symbol 2 ( stop loss and  take profit for both symbol separately)


ENTRY:

Arbitrage Entry based on below mentioned parameters:

1) Coefficient of K. Pearson 
and/or
https://www.mql5.com/en/market/product/28536?source=Site+Market+Main+Rating005#
2) Coefficient of C. Spearman
and/or
https://www.mql5.com/en/market/product/28536?source=Site+Market+Main+Rating005#
3) Cumulative Delta MT5 
and/or
// https://www.mql5.com/en/market/product/21009?source=External%3Ahttps%3A%2F%2Fwww.google.com%2F#description
Mode: DemandAndSupplyDifference //Its should be calculated on close of candle and should not redraw

Buy Condition:
Cumulative Delta 4 = Buy/Sell and Buy/Sell  greater /lesser than previous
and/or 
Cumulative Delta 3 = Buy/Sell and Buy/Sell  greater /lesser than previous
and/or
Cumulative Delta 2 = Buy/Sell  and Buy/Sell  greater /lesser than previous
and/or 
Cumulative Delta 1 = Buy/Sell  and Buy/Sell  greater /lesser than previous
and/or
current close candle = Buy/Sell and Buy/Sell  greater /lesser than previous
Sell Condition: 
Cumulative Delta 4 = Buy/Sell and Buy/Sell  greater /lesser than previous
and/or
Cumulative Delta 4 = Buy/Sell  and Buy/Sell  greater /lesser than previous
and/or
Cumulative Delta 4 = Buy/Sell and Buy/Sell  greater /lesser than previous
and/or 
Cumulative Delta 4 = Buy/Sell  and Buy/Sell  greater /lesser than previous
and/or 
current close candle = Buy/Sell  and Buy/Sell  greater /lesser than previous




and/or
4) Heiken Ashi 
(We can mention on close of green candle=> buy or sell)
(We can mention on close of red candle=> buy or sell)
Buy Condition: 
Previous candle 4 = Red/green
and/or
Previous candle 3 = Red/green
and/or
Previous candle 2 = Red/green
and/or 
Previous candle 1 = Red/green
and/or 
current close candle = Red/green
Sell Condition: 
Previous candle 4 = Red/green
and/or
Previous candle 3 = Red/green
and/or
Previous candle 2 = Red/green
and/or 
Previous candle 1 = Red/green
and/or 
current close candle = Red/green

5)Variable Index Dynamic Average

Buy Condition: 
Previous candle 4 = Above/Below the price
and/or
Previous candle 3 = Above/Below the price
and/or
Previous candle 2 = Above/Below the price
and/or 
Previous candle 1 = Above/Below the price
and/or 
current close candle = Above/Below the price
Sell Condition: 
Previous candle 4 = Above/Below the price
and/or
Previous candle 3 = Above/Below the price
and/or
Previous candle 2 = Above/Below the price
and/or 
Previous candle 1 = Above/Below the price
and/or 
current close candle = Above/Below the price

*************************************
Allow new position on exit = Yes/No

*************************************

EXIT: 
1) Opposite Signal (any one or set of combination or all) 
For EXIT indicator setting are separate than ENTRY condition
2) Stop loss (In terms of a) points b) $ c) ATR * times (On basket)d) None)
3) take profit (In terms of a) points b) $ c) ATR * times (On basket))
4) Trailing stop (In terms of a) points b) $ c) ATR * times (On basket))


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On charts you should display the Cointegration Level - delta indicator Cointegration, the threshold value for entry and exit....
refer to => www.mql5.com/en/market/product/37199#description 

Provide Close all open positions on chart, cxl all pending orders