You can transfer a chat directly to another agent, but you can also transfer a chat to another skill queue. For example, let's say you are an agent who specializes in printers, and you find yourself engaged with a customer seeking support for her scanner. You can use the "Advanced Search" function to transfer this chat to the "Scanners" queue.
Click on the "Advanced Search" icon to reveal the search form.
Then, begin typing - let's say you've typed "Scan" - and results will begin to appear. There is no agent with a name that matches "Scan", but your search does match the skill queue: "Scanners".
Click on the skill name to transfer the chat to that skill queue.