Hello James,
I am really sorry for the delay of this reply as it is a weekend for us here. Before guiding you on how to achieve this, I need to just summarize how "Profile Types" actually works. Each of the registration "types" are dependent on the "Profile type" they are registering under. For instance, if you create 2 types of profile,
1. Teachers (Requires Moderation)
2. Students (Does not require moderation).
Therefore, each of the settings are available on each profile types under the "Registration Tab".
Hope this would give you a much clearer insights on this