ok, i used the search button, and i didnt get this, so... if it has been made, my bad.
I learned this by myself when i didnt have internet.
Make a new item called skill. Occasion= never. Consumable=no. |only change that.|
Make a Common event.
Name it learn skill
make a conditional Branch, and go to the fourth section. In item, put the new item you made,"Skill". press ok.
in the first empty part of the conditional branch, input Change skills and then the skill of choice.
I will put screenshots later if needed.