Adding the ability to trade Future Spreads and Arbitrage Pairs

Despite  your platform profile  showes that MC allows to trade spreads https://www.multicharts.com/trading-software/index.php/Supported_security_types ,
but in fact it isn't true. Traders can only work with Futures Calendar Spreads and only in Paper Trading mode (forward testing and backtesting).  Despite e.g. Interactive brokers allows to work with calendar,intermarket and intercommodity spreads, and with stock arbitrage pairs also, and provides  their  synthetic instruments quotes - but Multicharts platform even with IB conection doesn't allow this option. Moreover via Interactive Brokers TWS traders is allowed to place LMT, LMT+MKT and REL+MKT orders for such types of derivatives wich is super important for some sort of intraday strategies and  for getting desirable Entry/Exit prices for these types of synthetic instruments.  Adding the posibilty to build, backtest and trade in algo mode Futures Spreads and Arbitrage Pairs (at least for IB) with using mentioned sorts of LMT orders would sugnificantly expanded range of trading oportuniries (especialy for the algo traders) and would attracted a lot of new clients for Multicharts platform because I don't know a lot of similar platforms which allows to work (especialy in algo mode) with these instruments. Thank you for the support this issue.