How do I change my username? [duplicate]

Question

I signed in with Google and I didn't get to choose my user name, is there a way to change it?

I cannot find a button under my profile.

Answer 1

Go to the main site and click your user at the top of the page

Now choose the tab Edit profile and settings

Here you can change your display name (this is the user name) and picture etc...

When you are finished, don't forget to click save profile at the bottom of the page.