Append
Append statement can be used to add items to a Property.
Syntax
Append statements start with the append keyword, followed by a Value, then the to keyword and target Property, before ending with a ;.
Examples
Add Heavy Armor Proficiency
append heavy to character.proficiency.armor;
Add a Situation-Specific Bonus
append '+4 to saving throws against poison' to character.situationSpecificBonuses;
Add Acrobatics as a Master Skill for NPCs
append acrobatics to npc.masterSkills;
Add the spell Overheat as a spell-like ability that can be used three times per day
append '1fc4e4ebc6bcbd94c0d9b76e.3' to character.spells;