Order of fields on Registration Type

[onetoomany]

As part of a registration, I want the user to add two additional pieces of information, so I added two fields to the Registration Type.

However, the People box ("Select people to associate with this registration") is always item 2 in the actual rendering of the registration form:
Field 1
People Box
Field 2

If I swap Field 1 with 2, I get
Field 2
People Box
Field 1

i.e. I cannot specify where the People box should sit in the form. Instead, it sits annoyingly in the middle of everything.