SammyFable wrote: »Why don't you just use shift+F or ctrl+F?
Shift+left click should set a waypoint that your group can see on the map. I can't remember if it shows on the compass on top of screen though.
In addition to Shift+Click which sets the "group rally point", every player can do Ctrl+Click which sets a "map ping". That ping can be seen by all players and disappears after a few seconds.
http://www.esoui.com/downloads/info357-HarvensCustomMapPinsMarkers.html
Might suit what you need. Unfortunately all group members need to download it, and it doesn't appear on the compass.
Haven't tested this myself, but it does sync up waypoints.