Premium ltp + premium orb based entry

want to find Nifty current week expiry strike with any price greater than and near to 100 + I also want ti define that take trade only when orb low of this strike option price is taken out. for both CE & PE. I am using find strike for getting strike near a premium of 100 but how to take entry only when orb low of this is broken…also is there a way to match the strike defined in entry conditons through position builder so that same strike price is chosen for entry as defined in entry conditions