It was active with code 1C7 flashing but it did not give me the options you mentioned I guess, I could write the codes down and enter them in Sentinel since there are not that many.
You could also use the System Status mode under Analyze in the menu.Just enter the first couple of letters of the system name, hit Enter
That will bring up any/all systems that start with those letters.
Then, with the correct system name, choose the site you want & hit enter.
That will show you basic info on the site, including the NAC. Then, just enter it in Sentinel. Also, submit it to be added to the database.