Hi @tulga, this is not possible at the moment in HubSpot. I do definitely see how an argument for that type of use case could be helpful for many people using HubSpot. I've found this idea that seems pretty similar in our ideas forum and I've upvoted it. I'd recommend you also upvote and provide your specific use-case so that our product team can get eyes on this: https://community.hubspot.com/t5/HubSpot-Ideas/Add-Custom-Hubspot-Owner-properties/idi-p/191522