These industrial sensors won't seem to work I think. At least I'm not comfortable enough to tweak firmware for now. So I will try to imitate bltouch with an optical interrupter and a micro servo just to be at the safe side. Thanks for your help

Yes, saw that video. But my Sensors are not proximity sensors. They are more industrial type sensors with quick response times. I did test both omron and keyence and the results are not promising. Still trying to figure out. Thanks