Buying trade window?

[x02dragon]

How do you put uP at buying trade window? I see some vendors do it but idk how to.

[Fidelis]

It depends if you want to use a merchant class or a non-merchant class character: A small guide how to do it is here http://irowiki.org/wiki/Buying_Store

Keep in mind that you can only put several items in a buying store (no equipment items), and you must have at least one of the items that you want to buy in your inventory!