If the trade isn’t acknowledged right away, make noise until it is. They are allowed while the draft is running, but be advised that it may take a while. Request it, then wait until the second post with a list to allow time for whoever’s running the draft to spot it. If the trade still isn’t made, request again. (Hence the utility of a pick list: you don’t have to make as many trades.)
Or you could copy/paste the list and make your trades. (Do it quickly, though… see earlier this thread.)