To permanently disable a feature in the game. We can add the following line of code in the “skill_types.xml” file. This line will make that ability only usable in the world we select.
If we have our server in “red world” we will add “green world”.
In this way this ability will only be usable in a green world and our world, not being green, will not appear.
In my case I have disabled the interact ability. So that the missions of the npcs disappear forever.
<ability lvl="0" name="Interact" id="297"> <duration const="">0</duration> <ability_skill_mult>0</ability_skill_mult> <entities/> <!-- entities are defined in quests_subjects.xml --> <requirements> <req type="world">green</req> </requirements> <results/> </ability>