New Post: New wings and pets with new Editor Patch? For 2.40

I tried it with a few items but it has not worked. Either the items disappear from your inventory or you can not select them.
Some items you can throw on the floor and then you can but you do not see more. These are the items of version 2.2 and 2.3.
I also tried to replace the normal wing (trans modification) with the new wings.