How can I change the name on the forum?

As the title says.
I would like to know that, is it possible to change the forum name?

Write @AndyB a DM he could help you maybe.

Thanks for the reply!
I just had a curious question, becasue everything else you can change like profile picture, and email, but only the forum name seems permanent to me.
Only if the system enables to use the same email on a different name, which I doubt.
Anyway it works the same with other game forums too. The name is permanent everywhere like here. Which is not the best option, becasue if I want to add an affix or a tag to my name, I cannot do that.