Solved Saving Sign Locations

Hi everyone,
So what I'm doing is looping through every sign that contains the word "Test", but how do I make it so it saves the location of all the signs with the word "Test", without overwriting the sign location with another sign location. I have tested the code below, but I'm stuck on the saving more than one sign.

Code:

        World world = Bukkit.getServer().getWorlds().get(0);
        for (Chunk chunk : world.getLoadedChunks()) {
            for (BlockState blockState : chunk.getTileEntities()) {
                if (blockState instanceof Sign) {
                    Sign sign = (Sign) blockState;
                  
                    if (sign.getLine(0).equalsIgnoreCase("Test")) {
                      
                        Main.getInstance().getConfig().set("Sign.x.", + sign.getLocation().getBlockX());
                        Main.getInstance().saveConfig();
                    }
                }
            }
        }

    }

 

@SeniorCluckers
There are two ways of doing it:

1. Don't save an individual location to the config, but a list of locations.
2. Every time a sign is added to the config, change the path somehow. An easy way of doing this would be to add a subpath that requires an int, and increase that integer every time a location is saved. (E.g. "path.to.place."+int )

 

@Zombie_Striker
Thank you so much! Worked!