API ExpandTrainerSkillLine

Expands a header in the trainer window, showing all spells below it. ExpandTrainerSkillLine(index)

Arguments

 * index : number - 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