When I look at the guide, logged in, and I see a chip I want, will that show if someone has it available for sale or trade, or do I have to know who I'm looking at? All I see is my own green dots?

Where the guide to the guide FAQ and all that? I'm wondering about the chip query. Somehow I searched and got no results, when I know there are chips. Something I'm doing wrong.

Great tool, I just don't understand.