F1 is the current default keybinding to access the player interface. this shows the players current coordinates within the game. Please use the Source Editor to manipulate the table (self-explanatory) and don't forget to use the nowiki tags to make sure the table doesn't get screwed up. The "y" coordinate is significant, as caves may include structures/locations of interest. Don't forget to include it. The (1), (2), etc. mean that a cave entrance is connected to another one of the same type.