You could build some patterns using the candle indicators, I did work with that idea for a while.... but that gave me very few trades because I had to lock each indicator in the group.
My preference is to run the generator until it gives me a good strategy, does not have to be profic with trades, just good quality trades that I can rely on..... and keep making new ones to build the activity.
I am saying that I like to have many strategies on the same pair and time frame, each one being of higher quality and the number of strategies giving me the activity that I require.
It takes a long time. lol
After the generator has done its thing and made a few hundred strategies.... I look through those to locate ideas for the next run, try to refine a couple things and see if that will give me more.
When we finally get soemthing that we want to trade with, we have to be strict with the metrics.... and then we can have peace of mind as we start to use them in a real account. (my experiences have taught me well. hahaha)