This would allow using the available tick data with the Control Points and Open Prices backtesting models. Naturally, this option wouldn't use every tick during the backtest - it would let MT4 generate the data based on the HST files constructed from the tick data.
Note: this feature was implemented in v2.2.9 beta.
Among other factors, planned features will be scheduled for implementation based on user preference. Press Yes below next to "Did you find it helpful?" if you'd like this feature to be prioritized for implementation. Feel free to press No if it's not a priority for you.