This site seems extremely confusing. Here is all I want to do.
I have 6 BTC I just deposited into my exchange account.
I want to sell those BTC for USD now and then in a couple days convert it all into BTC again and withdraw my BTC...how do I do this? All I see is $ numbers, no actual trading.
I think what you need here is just exchange and not trading. So go to Exchange tab and put those 6 BTC for sale (of course on maximum price) and get your USD. And then hold on to this unless you decide to convert them to BTC, all you need to do is to buy BTC back from exchange (of course on cheap possible).