Drop list like Owner

Infos:

• Used Zammad version: 5.3.1-1673546521.f2c640c5.buste
• Used Zammad installation type: (source, package, docker-compose, …) package
• Operating system: Debian Buster
• Browser + version: Google Chrome

Hi,

I would like to know how to add a drop-down list that lists users like the owner field… is this possible?
Thanks.

Olivier