OK, the ‘kind of’ is because for some reason the version shows as Enterprise even though I set edition to the team. From looking at this forum it seems this should not matter (i.e. without a licence I simply don’t have enterprise features.
However, I can’t work out how to set a user to System Admin, all the docs talk about using the System Console (which is an enterprise feature).
So how do I make a user a System Admin, In Manage Members all I can do is make a member a Team Admin.