I see another individual posted the exact same issue 2 years ago and received zero help. How about an answer please:
https://forums.garmin.com/showpost.php?p=30144&postcount=1
I am going camping and a tourist site posted a .csv file of all sorts of great POIs for my camping grounds. I loaded them into the nuvi, and they are visible in the extras menu. I notice when I look at the map that they aren't visible. Doesn't really help me much to drive by some interesting historical monument or other "POI" and not see it on my screen. How can I keep these visible at all times rather than just selecting them and having to "go" to them?
