Has anyone here used the ARPG inventory system? Having a problem I can't seem to solve

If anyone has used it before they know that when weapons are equipped it’s just a mesh not a physical blueprint. So it needs to be swapped out to use some kind of weapon system.

I’m also using the art of combat system which has its own weapon system.

I can not for the life of me figure out where in the ARPGI System to change the code for equipping a blueprint or how I would basically assign an item ID to the blueprint so it knows… hey this inventory item is assigned to this blueprint so when you click on it you equip this blueprint. Any help would be greatly appreciated because this is an extremely well put together inventory system but I’m about to give up and just make my own.