There are four mountain peaks on Solstheim that have "Point of Interest" map symbols on them. However they remain hidden from the player until said player is literally standing on top of them. At that point they become visible on the map and the compass, and are basically like every other map symbol in the game once you discover them. I would like to copy that for a mod I'm working on, unfortunately the location of my mod is in Skyrim and the CK won't let me open two master files. Is there a way to do this through some other means?

EDIT: I just had the idea to open Dragonborn by itself and copy one of the map markers, then open my mod and paste it in, but the CK would crash everytime I tried opening Dragonborn.