Daily Roll Over Rate Calc. in Backtest MT5

 

Has anyone figured out how to add in the daily roll over rate charges that OANDA charges for open trades into a backtests? (On another MT5 broker, not OANDA)


Even if you have the set the interest rates standard to one setting, it would still be super useful to have it deduct or deposit money into the balance each day for backtestings purposes only. 


Please let me know if you have had any experience with this :) 


Thank you all