here is how u do it:~

# 1st go to an Alchemist de pick on upgrade u ll c [item level upgrade]
pick the item that you 1 to upgade( this ll only work on +7 items).

# 2nd put the item(that u 1 to upgrade) in to the 1st slot and in the 2nd slot
all the fchh de pass item upgtade.