change supply

hello.

i want to change supply item from my useroptions

i created this:
http://i64.tinypic.com/vdem0z.jpg
now i need this: when i will change mana potion to strong mana potion it will change in supplies too. I know that i can use setsetting('Supplies/Items/mana potion/ID', '268') but it is sometimes bugged and changing only ID (name price and cap cannot be changed)

is there any function to change name or ID supply item in depending on category ? or please give me tips how i can do it for myself

im trying this:

Code:

---

foreach supplyitem s 'm' do
      s.name = 'strong mana potion'
end

---

but its wrong.

Please Help cuz its important for me. Thanks