i did nott find any solution to change my Username. Where can i change this and how can i hide my real name for all users?!
this post gives instructions on how to change your display name: https://community.microfocus.com/welcome_to_the_community/quicklinks/general-tips-for-getting-started/w/general-tips-for-getting-started/38670/how-do-i-change-my-display-name-my-avatar-or-other-preferences
after clicking on edit profile you can simply start typing the new name you want and then click on save.