[Spell] How to apply anim name

[SenPie69]

the title itself, i've been wondering how do you apply animation with those models that have "Attack - 1" or "Spell - 2" like how do you do that? i tried naming on the ability itself as two strings, tried both letters and number

 

[Chaosium]

I think you need to use SetUnitAnimationByIndex in JASS, the function doesn't exist in GUI and the Art - Animation Name field cannot play a specific variant of an animation with multiple variants