Ask MarketSeries, MarketDepth series, Multi symbol backtesting and Tick Tf's

Hi  dear Spotware team I want to politely suggest you the following three things

1. a TimeSeries as MarketSeries.Close But containing the Ask price due to is necessary to achieve better and accurate results in the the analysis.

2. Allow backtesting with MarketData.GetSeries() to be able to make multi symbol backtesting 

3. add to the timeframes interface the Tick Timframes to be able to get series in such timeframes using MarketData.GetSeries(Symbol, Timeframe.Tick10(for Example)) 

4. Normally cbots developers requires the market depth to develope  trading strategies what is not actuallly available historically so is not possible to do analysis over the past data

this considerations  must be taken as  suggestions to increase the amount of people trading and working on cAlgo plattform, please notice that is that  if it's not possible to solve so I kindly ask you to allow us to have an answer at least.

thank you.