Board Thread:Support Requests - Getting Technical/@comment-33537110-20150903131059/@comment-1038387-20150904135614

Veal... That probably requires some context.

You can ask for custom user groups via Special:Contact/general. Make sure to give ample reasons why you need the user group, and what powers they need. If they don't need powers, you can consider using UserTags.

As for the extra protection level, I doubt that is possible, but you can ask via Special:Contact/general too.