As you saw before in the monster data there is a section for Abilities:
you can open the “MonsterAbility” data asset to edit it or duplicate it to make your own:
When you open the ability data asset you will find all parameters for the ability:
Animations: The attack animation montage the monster will play to perform the ability, you can add more than one animation and the monster will choose randomly one of them.
Cooldown: The cooldown time the monster will wait before performing this ability.
Movement Speed: Movement speed of the monster while performing this ability.
Range: The Maximum range the monster can perform this ability.
Base Damage: The damage applies when this abilitiy land on target.
Ranged: Determine if this a ranged ability or not, If true the monster will spawn projectile when performing this ability.
Projectile: the class of projectile actor that the monster will spawn If it’s a ranged ability.