I don't know if you can but give one of the breastfeeding helplines a call they should be able to advise.. I hope you can
I think you can get a gadget that is a bag that you fill with milk and hang between your breasts. There are tubes that you attach to your breasts so that they end at the nipple. The baby breastfeeds to stimulate your supply but actually feeds from the bag if that makes sense..
lalecheleague or bfn breastfeeding network are probably the best place to start.
Good luck and pls let me know if what you find out as I'm interested in becoming a BF counsellor and want to BF the baby that I'm expecting.
good luck