I am trying to make a hud that can be used to detect invisible avatars and camera crosshairs. I'm planning to make it possible to show the location of invisible avatars by placing hovertext above their heads. For example: Someone named MrGriefer enters a sandbox. A person with this hud is also there. MrGriefer turns himself invisible. The hud user, along with everyone in the sandbox, will see [DETECTED <MrGriefer>] appear above MrGriefer. MrGriefer sees it, and targets the hud user. Another alert appears above MrGriefer, but this time, only the hud user can see it. It says [CAMMED BY <MrGriefer>]. If MrGriefer has any orbit gun, cager, teleport blocker, or other similar objects when this happens, the hud user sees [TARGETED BY <MrGriefer>] and can get away before MrGriefer can do anything. The only problem with this scenario is that I don't know if the invisibility detection violates any rules by showing the hovertext above the griefer to everyone instead of just the user. I also don't know how to put the script above other avatars to reveal their location. Also, if the scripting used is capable of revealing Lindens' locations, the user and creator could get in big trouble when a Linden sees [DETECTED <FirstNameHere Linden>] appear above his or her head right after hiding. Can anyone tell me what the rules are regarding the use of hovertext on avatars?