||This is no longer a part of the World of Warcraft API.
- "Skills" system has been removed entirely.
- It was removed in patch 4.0.1.
Adds a skill point to a particular skill. Unused
- Number - Index of the skill to spend skill points on, ascending from 1.
- The skill up system this function is part of is not used on live realms. As such, players have no skill points to spend, and this function can only be used to make cosmetic changes to the skills frame.