Changing SA URL

Hello,

My user profile is currently https://seekingalpha.com/user/54993870/ and I'm about to put up a number of articles on a periodic basis.

I'm looking to change it to something like this: https://seekingalpha.com/author/global-x-etfs to ease traffic and readership when I share the URLs to the articles on social media, et al. 

What steps must I take to enable this change?