Player and group window for healers pls.
 

There ARE some group windows with click to cure. But they lack some properties. As far as I know, there are no player and group windows out there with ALL these properties:


A perfect healer's GROUP window would be (in my opinion):
* exact the same appearance as the default window (same size, textures), but
* a frame (within the main frame) around the player you have currently targetted
* maybe with a F2-F6 display left to the name
* and most important the click to cure function with these properties:
/cancel_spellcast
/useability 'cure'
/target_previous
(does "useablityonplayer" include all this?)

The PLAYER window also like the default one, but with click to cure, also with:
/cancel_spellcast
/useability 'cure'
/target_previous


Some experienced interface modder here who wants to program such a player and group window?

You should try ProfitUI Reborn, download is here. The group window is superior to the default in terms of size and overall group health visibility, as the players' bars are stacked closer together, with the cure icons to the side.
Your own health bar is also in the group window, and F1-F6 are to the left of every person's name. Click-to-cure is enabled in the group window, as well as the player window, and you can cure yourself via either window. This functionality does not require you to change targets, as I believe it does take advantage of the /useabilityonplayer command you mentioned.
The group window also has the ability to either queue your cure after your current spell finishes casting, or cancel your current spell and cure immediately.