Need extra filters to be added to EA

I have a EA that has been coded up and would like to add some optional additional filters to trades.

*Code is to be clearly commented, free of errors and must not break existing code*

This EA opens a trade if price at X time is above Y  at Z time Open Sell - opposite for Buys - if price at x time is below Y at Z time open BUY

 The Job your bidding on is below 

Optional filters to add with TRUE/FALSE externs to be added

- Only allow trade if price is above or below Pivot Resistance level 2 or below support level 2 at the time the EA goes to trigger the trade with its current settings.

- Only allow buy if price is Below previous days Low

- Only allow Sell if price is Above previous days High 

- Only Allow Buy If price is Below previous days Mid way point

- Only Allow Sell if price is Above Previous days mid point