More than one collection for sale at a time under one account

From a response to a question I sent in, I learned you can only have one collection at a time per account. That if I wanted two collections online for sale, I had to open a second account. For that second account my selling rate would be zero. Thus a buyer might be hesitate to bid. It would be nice if you could have more than one collection per account identified by a unique title. For instance, I want to sell all cards for a single year as one collection and another as a second collection with unique titles such as 1976 Topps and 1986 Donruss.