I'm not sure what this window is called, but I'm having trouble using click-to-cures on it.
On classes that don't have cures, it seems to be working ok to use potions. On classes with cures (Priests, mages), I get the message 'Parent.SlotName could not be found in your group or raid.' Then it gets interesting.
If I group(with a player or mercenary), I can use the quick-cure buttons in the group window. At this point, the window above works, but it seems to cure whoever was last cured in the group window. If i use the group window to cure my mercenary, using the button shown(below my name above) cures the mercenary again. If I use the group window to cure myself, then using this window cures myself.
After dropping group, if the last person I cured from the group window was myself, then the click-to-cure works on myself after. If the last cured in the group window was a player/merc, I get the message 'g2 could not be found in your group or raid.'
Unsure if this is working as intended or not, but it makes it so the click-to-cure won't work while soloing.