And how do I make items appear inside inventory ...for example u take a sword and it appears on your hand ingame ,
I have created a test map for you, try it.
The thing you need to change are;
Art - Target: Your path to your custom model/default model
Art - Target Attachment Point 1 ~ 6: Where do you want the effect to appear, usually: overhead, head, hand,left, hand,right, weapon, origin, foot, chest.
Art - Target Attachments: How many attachment point you have
Data - Attack Bonus: 0, you just want the effect right, therefore when you pick that item, just effect appear, you don't want Damage Bonus.
No need to close the map.
You can see the custom models when you test the map (goes inside the game).
But you cannot see the model via World Editor if you do not re-open the map after save, it will still appear as cubes.