I do think you can as long as the commodity has a mesh. I hope it's an .im.
I had to do it to some of mine because of losses of original max. files. I used PEV's Attachment Maker (visual) or .im Editor (non visual, so you have to know the exact X,Y,Z coordinates).
It's my own commodity (Log Load) and I managed to get seperate made chains to attach, but they were so high poly half of them didn't show up so I discarded that idea and made chains with planes and alpha channels.