Identityserver4.admin: How to get the username in access token

[KiritoStudio]

Question

Hi, I'm new in identityserver4. My request is like the following below:

I know the sub is the userid, but I could not get the username. Is there anyway I can get the username or even email or mobile in access token without send http request to the userinfo endpoint?

[vicentt]

you can add your custom claims to your access token. Something like this
https://community.auth0.com/t/is-there-a-way-to-include-username-as-a-claim-using-resource-owner-password-grant-access-tokens/18769