Spends (or unspends) talent points in the Talent UI's preview mode
Signature:
AddPreviewTalentPoints(tabIndex, talentIndex, points, isPet, talentGroup)
Arguments:
tabIndex- Index of a talent tab (between 1 andGetNumTalentTabs()) (number)talentIndex- Index of a talent option (between 1 andGetNumTalents()) (number)points- Number of points to spend on the talent, or a negative number to unspend points. Values larger than allowed for the talent will be clipped to the maximum value (e.g. attempting to spend ten points on a talent that has five ranks will only spend up to five points). (number)isPet- True to edit talents for the player's pet, false to edit talents for the player (boolean)talentGroup- Which set of talents to edit, if the player has Dual Talent Specialization enabled (number)1- Primary Talents2- Secondary Talentsnil- Currently active talents