GroupSpotter now has 2 functions.
First the basic one that only displays your group on the map when you wish.
The second is a map overlay that visualizes your single and group heal range.

Left click the button on the screen or assign a key to the actionbarbutton 113 to toggle off/on alot of other things on your map except your group.
With a right click on the button you can switch through the 2 color profiles and disable the map overlay.
The middle click will open the settings window.

currently the supported maps are:

• Mythic Worldmap
• Mythic Minimap*
• Minmap* (zmm)
• CustomMap*
• MiniWorldMap
• MiniWorldMap integrated into YakUI

(*) map overlay possible

Currently Scenraiosgroups are not supported through Mythic, I will add this feature as soon as Mythic allows that.

A warning to the CustomMap users. If your Map isn't perfectly square, the overlay won't be exact anymore! (or even way off)

If you have a feature request or a bug please look if someone already filed something similar. You can comment and vote on existing tickets. If there is no ticket that matches, please create one. (You can use your normal curse account.)

Thanks to Yakar who designed the Button!
Thanks to FranzWernerOlm who rewrote the HealCircle feature!