I have also seen these set ups though.
I have gone short on USDJPY, GBPJPY I have had an open order on this one since Thursday though using my 4 hr charts and using a different entry on it and running in the profit at the moment,
I am using this system everyday but another one on the lower time frame though.
I dont know if there is an EA for this I doubt someone has done one yet, and for me I am useless when it comes to programming so I cant even say I would like to do it
I have a friend who will be able to do it but he would charge me for it though