API ExpandTrainerSkillLine

Expands a header in the trainer window, showing all spells below it.
 ExpandTrainerSkillLine(index)
==Arguments==
:;index: - The index of a line in the trainer window (if the supplied index is not a header, an error is produced).
::Index 0 ("All") will expand all headers.
::Note that indices are affected by the trainer filter, see () and ()
==Patch changes==
==See also==
* ()