This is not totally related, because I know you are looking at self enrolment without a key and whose name appears first on the list of teachers and so on - but I just thought I would point out in any case for future reference that in 2.9 the "keyholder" role which used to exist in 1.9 and then was lost -has returned. So you will be able to specify a name of someone in a course who holds the enrolment key for that course. Not quite what you want but useful for some nonetheless. See MDL-26017
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