Yep! The EA should learn from the existing trades and adapt on the future ones.
This is what I am currently doing with my EA :)
200 k/bit expert can not make your happiness
an intelligent smart traders who works in semi-manual behind PC signal perhaps
smart = no 20 order same pairs at grid )) no pyramid from 010 to 35 lot haaaa ) no roulette casino maybe yes maybe no )) capable to take trend with small DD