Misaki thank you very much for your useful informations

Misaki i'm so appreciated to your advice. I know about using skins in spine, this project is not mine, i took it from a unity project and i just wanna know that is there any other way without using skins because only spine file for model has animations ( in pic no1), all other files for items don't have any animations ( pic no2) and all of file are using the exact same skeleton but when playing game, the outfits still added animtions of model (pic no1).

I wonder if I can combine 2 different spine files into unity but they have the same skeleton, the attachments in one of 2 spine file will follow animation of the other spine file. ( for example, the item in pic number 2 follows
animations in pic number1)