How can I bind to a weapon to 1 primery ability 2 animations? For example: 1hand_melee_slash_right, 1hand_melee_slash_left?
You want the same ability to alternate 2 animations? If that's the case, there's a weapon animation server script you can get. You can find it in some existing melee weapons. Go to community content and download the Carlos blade by Standardcombo for an example.