Error of slippage calculation between Multicharts and SQX

When comparing the backtest reports between MC and SQX, it was found that there were often large errors.Upon inquiry, the MC technician. The reason is thatMC does not calculate the slippage for limit order and stop limit order  by default . This is consistent with live trading. So when you have a limit order entry or a ProfitTarget exit in your strategy, the backtest results between MC and SQX become very inconsistent.Of course, in special cases, you can also change the default setting to caculate slippage for all orders in MC.Below is the official reference URL. 

https://www.multicharts.com/discussion/viewtopic.php?t=49579

I have verified this. I think the Tradestation is probably the same.Therefore, it is suggested that slippage calculation in SQX should be  changed to the same logic by default. Of course,it should be add an option:
caculate slippage for all orders