How to change privatememberdata nickname ?

Maybe I’m missing something but I have account in the members/privatememberdata that I want to change the nickname content.
I see no way to do that.
Forum display the nickname field this field cannot be set in the registration page and not changed in the database.
Help would me much appreciated.

https://support.wix.com/en/article/corvid-wix-members-privatemembersdata-collection-fields

Nickname (nickname)

Description : Displays the name the member specified on their profile.
Type : Text
Can connect to data : Yes
Can use in dynamic page URL : Yes
Read-only : Yes

The user themselves sets this in either their Wix Blog, Wix Forum or Wix Members account.

Funny, I see no where the value or where to show or change it in the forum.
I managed to change it by installing the blog app and accessing posts in the dashboard.
On the forum app itself, I don’t see where people can change it.

@gregoryjuster
https://support.wix.com/en/article/about-the-forum-members-page

Try reading the Wix Support pages about Wix Forum and Wix Blog as they are Wix apps and nothing to do with Wix Corvid, Wix Support will be able to help you more with those apps and not this Corvid forum which is for code related issues on your page.

In Wix Members app, Wix Blog app and Wix Forum app all site members who have joined up to the site’s community can change it through this box here.