I find that it can be difficult hunting down colonists as the game progresses, and it becomes especially difficult once larger raids occur and everyone is in a small area. It would be nice to have a GUI element which shows characters and their health, where clicking their icon or multiple characters' icons selects those specific characters. I suppose the best example of what I am thinking of is the character selection GUI mechanic in FTL: Faster than Light. In that game, it's really easy to see when a character is being attacked or has dangerously low health, and you can easily select them and pull them out of a situation at the last minute.