Item animation with geckolib only for one Item

I am trying to do an Item animation but if i am holding the item and having another one in my hotbar (or dropped or in itemframe etc..) every item will do the animation.

Another failiure is that i cant change the perspective in which the animations will play.

Geckolib ver.:(5.9.3)
Mcreator ver.:(2024.3)

Please help me