Sub-Domain Change, But Not Domain

Hi, my forum (Click) is http://ageoflegends.forummotion.com/
I want it to be http://ageoflegends.forummotion.net/

When I got to change the domain name, it appears like this:
             ____________
Domain: |ageoflegends| .forummotion.com
             '''''''''''''''''''''''''''''''
I don't have the dropdown menu to change the domain part. I can only edit what's inside the box.

So instead of forummotion.com, I want forummotion.net or forumotion.net.

There should be many drop-down menus on that page.  Check them for the one you want.

Ah, I see. I did not notice those were for domains. Thanks!

Topic Solved.