I've been looking around the plugins search and there seem to be a handful of plugins for this, but I'm looking for something that will allow you to actively place markers at your leisure. Personal to the player and anyone on their team that will be permanently on the minimap for that player and/or their team until the marker is removed by the original creator. This would overlay the G map.

To add, the player would be able to make the markers private or available to their team.