Here is a short instruction on how to use tab. Mages, I know this does not really pertain to you when it mentions invoke and hb, howevever you can still use this function to heal fighters when you duo.
1. Click Tab 1x
2. Target whoever you would like the Tab to be on
(move cursor to him / her)
3. Double Tab (click Tab 2x)
4. Hold down your heal button.
Note: To escape from this mode you use Esc.
To target yourself use Home button.
While double tabbed (when your cursor is on a fighter)
you can move, talk, use emoticons, or do anything else,
you can also inspire, or hb and invoke.
Sinchan Theraveda, Buya Poet Tutor