Place WoW-style world markers on the ground. [Hopefully] useful for showing people (and having them remember) where they should go in dungeons and raids.
To place, click the appropriate icon button, and then anywhere on the ground; the marker should now be placed on you. To clear it, select that marker and unselect it again. To clear all markers, click the big red button.
If you have any issues then please report those at https://github.com/teozkr/WorldMarkers/issues. Contributions are of course very welcome on there as well.