I just upgraded from the Galaxy Watch to the GW3 to gain the blood pressure feature. I have managed to get the ECG feature working, but for the life of me, I cannot get the blood pressure feature working. There is no widget on the watch for blood pressure. I am 70 years old and reading these posts, I can see that I am out of my league with most of this software. I build computers for children/grandchildren, but pretty stupid on software/firmware. Can someone tell me what I need to do to get the BP feature working? The watch is the SM-845 model. My smart phone is a Samsung Galaxy S8+. Thanks for any assistance you may be able to provide. Please, just keep in mind that you need to keep it simple for a 70 year old.