Can a Single Agent Be Exclusively Rung in a Queue When Others Are Busy?

I’m looking into optimizing our call center operations and had a specific scenario in mind that I could use some advice on. Is there a way to configure our call distribution system so that only one particular agent receives calls in a queue, but this only happens when all other agents are currently occupied?

Has anyone implemented a similar setup or can offer insights into how this might be achievable?

Thanks in advance for your help!