Add news Filter to existing Metatrader 4 EA Robot

I have an existing robot that i want to add a news filter to. This news filter should be based on the Forex Factory Calender. I should be able to back test with an existing CSV file of past news events. The news filter should be able to: * select news events that are effecting a pair * filter high, medium or low impact news. * select a time not to trade before and after high, medium and low impact news. * have an extra custom category of news which will be extra high, we should be able to filter on this and select no trading time frames for this. Anyone bidding for this must have previous experience of adding news filters to robots. You will be required to show my a compiled version of this that is working. I can provide a CSV file with 4 years worth of news events.