You can try to see how it can work, until it was disabled.

I try it seconds ago, and I confirm that still works well today.

You can search up the positions you are looking up, "staff" or "Global Moderator" and you will get a list of all users in that position on the forum. You should also disable the 'search by name' option. There are some members with similar names to some staff positions that will show up as well.