igrik, done, works ok.
Ybackpack.erm

There is a last problem and I don't know how to solve or if it is solvable.

All works well, but if I have two of same artifacts consecutive in backpack, it deletes the previous one when clicking on second (if left to right). This is because the erm code is searching for first artifact of that kind in backpack. Result is correct but visually is weird. Don't know a solution.