Help with trade site and postings please

Hello, I'm trying to list 1 single divine orb for some silver coins. I put the divine orb in my trade stash tab and click on it put "exact price" and look through the drop down and there is no icon or listing for the leagues silver coin currency?

It can be done because I see listing on the trade site. I have only played a couple leagues still learning. Any help would be appreciated.

Thanks in advance for your time.

still confusing not going to lie lol =) but I will give it a shot. Basically, you enter x/y and tag (silver coin) in the notes section of the item you are trying to sell .. I think.. I will toy with it again .

Thanks !